If the Earth didn't rotate, winds would travel either north or south due to differences in temperature and pressure. But since the Earth does rotate, the Coriolis effect deflects these winds to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
What is coriolis effect ?Circulating air is diverted to the right in the Northern Hemisphere and to the left in the Southern Hemisphere when the Earth revolves on its axis. The Coriolis effect is the name given to this deflection.
Air would simply flow directly from high-pressure areas to low-pressure regions if the Coriolis effect didn't exist. The Coriolis effect affects the world's wind patterns and determines the predominant south-westerlies in the UK.
Thus, option A is correct.
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using the chemical equation to help you, how many nadphs are required to fix one molecule of co2 in the calvin-benson cycle?
In the Calvin-Benson cycle, 1 molecule of CO2 requires 3 molecules of NADPH for fixation.
This is because the Calvin-Benson cycle involves the reduction of CO2 to glucose, which requires three molecules of NADPH for the reduction reactions. NADPH is a type of coenzyme that helps in providing electrons for the reduction of CO2 to glucose. So, to fix one molecule of CO2 in the Calvin-Benson cycle, three molecules of NADPH are required.
Chemical equation: 3ATP + 2 NADPH2
What is the Calvin-Benson cycle?Also known as the reductive pentose phosphate cycle or the C3 cycle, is a series of biochemical reactions that plants use to fix carbon dioxide and produce carbohydrates.
The cycle begins with the fixation of carbon dioxide into a glycerate 3-phosphate molecule, which is then reduced to a 3-carbon sugar molecule. The sugar molecule is then converted into other molecules such as fructose 6-phosphate and ribulose 5-phosphate, which are then used to form other molecules such as glucose and starch.
Complete question:
Using the chemical equation to help you, how many nadphs are required to fix one molecule of co2 in the calvin-benson cycle?
Chemical equation: 3ATP + 2 NADPH2
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An atom has three protons and one neutron in its nucleus. How many electrons will it have; if it is a stable atom? How do you know?
When you combine vinegar and baking soda, a gas is produced. Why is the gas considered evidence that a chemical reaction occurred?
How can you use a graduated cylinder, water, and an electronic balance to find the density of water?
Please answer all 3
:)
1. The number of electrons in the atom is 3.
The atom is not stable because the proton and neutron ratio is greater than 1.5
2. The gas produced is considered evidence that a chemical reaction occurred because it is a new product.
3. The graduated cylinder measures the volume of water, the electronic balance measures the mass of water, and the density of water is obtained from the ratio of the mass and volume of water measured.
What are protons and neutrons?Protons are the sub-atomic particles found in the nucleus of atoms that are positively charged. The proton number is equal to the electron in neutral atoms.
Neutrons are the sub-atomic particles found in the nucleus of atoms that are neutral or possess no charge.
The ratio of the protons and neutrons given stability to the atom of its is is not greater than 1.5
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without doing any calculations, determine the sign of δssys for each of the following chemical reactions. drag the appropriate items to their respective bins.
Entropy is stated to diminish as a system switches from an ordered to a disordered layout, and vice versa. When randomness rises, ΔS is positive.
What does ΔS stand for?Heat transport (delta Q) divided by temperature equals the change of entropy (delta ΔS ) (T). (Delta Q / T) = delta ΔS If a physical process can be reversed, the entropy of the environment and the system will stay constant.
What are ΔS measured in units?The Connection Between 'ΔH' and 'ΔS 'One thing to bear in mind when using any one of these equations in computations is that while ΔS values are typically reported as J/K.mol, G and ΔH values are frequently reported in kJ/mol.
Briefing1. 2H30' (aq) + CO23- (aq) - CO2(g) +3H2O(1)
2. CH4(g) + 202,(g) - CO2(g) + 2H2O(l)
3. Mg (s) + Cl2(g) - MgCǐ2(s)
4. SO3(g) + H2O(I) - H2SO4(I)
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what is the electron pair geometry for an ammonia molecule, nh3? group of answer choices bent linear tetrahedral trigonal pyramidal none of these
The electron pair geometry for an ammonia molecule, NH₃ is tetrahedral.
According to VSPER theory :
for NH₃ : number of electron pairs arre:
Number of electron pairs = 1 / 2 [ V + N -C + A]
where V is number of valence electrons on central atom = 5
N = number of monovalent electron = 3
C = charge of cation = 0
A = charge of anion = 0
number of electron pairs = 1 / 2 [ 5 + 3 ]
= 4
The 4 electrons group are present out of which three are bonding groups and one present as lone pair of electron therefore the electron geometry is tetrahedral and the molecular geometry is trigonal pyramidal.
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g draw a picture showing your hypothesis about how they do this. the following items should be included in the picture: protons, atp synthase, electron carriers/transport proteins and molecules, inorganic electron donor, inorganic electron acceptor
A premise drawn from some evidence is known as a hypothesis. This is the starting step of any study that converts the research questions into predictions, including protons and electron carriers.
Inorganic electron acceptor, inorganic electron donor, and transport proteins and molecules are also included. Variables, the population, and how the variables are related are all included as components. Any hypothesis that is put to the test in order to determine how two or more variables relate to one another is called a research hypothesis. Unchangeable and negatively charged, an electron is a part of an atom. Aside from the atom nucleus, electrons surround it. The mass of an electron is extremely small compared to that of a neutron or proton, and it carries one unit of negative charge (1.602 x 10 -19 coulomb).
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write the complete and balanced chemical equation to explain why aluminum metal reaxcts vigorously with aqueous potassium hydroxide
Due to the creation of complicated potassium aluminate, this reaction is complex.
Describe potassium alum.The FDA classifies potassium alum as a chemical that is generally acknowledged as safe (GRAS). It is an inorganic salt with the formula AlK(SO4)2, sometimes known as potassium aluminum sulfate.
How does potassium aluminate come into being?Nowadays, potassium sulfate is added to a concentrated solution of aluminium sulfate to create potassium alum in an industrial setting. Typically, sulfuric acid is used to process minerals like cryolite, bauxite, and alum schist to produce aluminum sulfate.
Breif:
2 Al ( s ) Aluminium + 2 KOH ( aq ) Potassium hydroxide + 6 H 2 O ( l ) Water → 2 K [ Al ( OH ) 4 ] ( aq ) Tetrahydroxoaluminate ( III ) or Potassium aluminate + 3 H 2 ( g ) Hydrogen.
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on spacecraft, a h2/o2 fuel cell is used to produce electricity. regarding the fuel cell reactions: a. what is the balanced redox reaction? b. what is ecell assuming po2
A fuel cell is a galvanic cell. In a hydrogen-oxygen fuel cell, hydrogen and oxygen are bubbled through porous carbon electrodes into a concentrated aqueous sodium hydroxide solution. Platinum or palladium metal that has been finely divided serves as the catalyst in this instance. at the anode. H2(g)+2OH−(aq)→2H2O(l)+2e−
The H2O2 fuel cell's basic structure consists of porous carbon electrodes with appropriate catalysts (typically finely divided platinum and palladium) integrated into them. As an electrolyte, concentrated KOH or NaOH is positioned between the electrodes.
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Convert .4 moles NaCl to molecules
Answer:
2.4 x 10^23 molecules
Explanation:
The Avogadro's Constant is equal to 6.022 x 10^23 for one mole of substance
1 mole = 6.022 x 10^23
so 0.4 mole = (0.4 x 6.022 x 10^23)/1 = 2.4 x 10^23 molecules
how many amperes of electricity are needed to electrolyze cu2 to cu if 1.15 moles of cu is produced in 4.8 seconds?
47542 amperes of electricity are needed to electrolyze Cu²⁺ to Cu if 1.15 moles of Cu is produced in 4.8 seconds.
Using the formula w= zit
where w,
The quantity of power transported through the electrolyte directly correlates to the amount of material created at an electrode during electrolysis. W is the mass of substance produced at an electrode, and It. or W = ZIt.
W = Zit ( Q= I*t ) Where, Z = Electrochemical Equivalent. Z = atomic weight/nF (n = no. of electron, F = 96500 )
z= atomic weight/ nF
z= 63.5/ 2 * 96500
z= 0.00032
∴w = 0.00032 *i * 4.8
w= number of moles* molecular weight
w= 1.15 * 63.5
w= 73.025
73.025= 0.00032 * i * 4.8
i= 73.025/ 0.00032 * 4.8
i= 47542 ampere
Therefore 47542 amperes of electricity are needed to electrolyze Cu² to cu.
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You add 100. 0 g of water at 60. 0°c to 100. 0 g of ice at 0. 00°c. Some of the ice melts and cools the water to 0. 00°c. When the ice and water mixture has come to a uniform temperature of 0°c, how much ice has melted?.
Mass of ice is 125.7 g
q = mass of water C water (0 - 100 degree C)
q = 100 g (4.186 j/g degree c)(-100)
q = -41860J
Heat l0st by water is gained by ice
-q = m × Δh
-(-41860) = m × 333j / g
mass of ice = 125.7 g
The quantity of matter in a sample is represented by the attribute of mass. Grams (g) and kilograms are typically used to report mass (kg).
Another way to think of mass as the characteristic that gives matter its ability to resist acceleration is as a property. Acceleration is more difficult for objects with more mass.
Weight vs. Mass
Although the terms mass and weight are not interchangeable, an object's weight depends on its mass. W is weight, m is mass, and g is the acceleration of gravity, which on Earth is approximately 9.8 m/s2. Weight is the force that a gravitational field exerts on mass. Therefore, the units of kgm/s2 or Newtons are used to report weight in a suitable manner (N). However, because the Earth is a sphere,
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write the balanced chemical equation for the reaction of the weak acid hcn with water. include the phase of each species. chemical equation:
HCN(aq)+H2O⇋CN−(aq)+H3O+(aq)
This is the weak acid HCN's acid dissociation equilibrium.
What is an easy way to define acid?A compound that creates salts when it combines with specific metals and releases hydrogen ions into water. Certain dyes are given a scarlet hue and a sour flavour by acids. Acids generated by the body, such stomach acid, can assist organ function. One type of acid is hydrochloric acid.
What varieties of acid are there?Organic acids and inorganic acids are the two different types of acids. Mineral acids are another name for inorganic acids.The strength of organic acids is often lower than that of inorganic acids. Although inorganic acids don't include carbon, organic acids do, which is the major distinction between the two.
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You add 100. 0 g of water at 60. 0°c to 100. 0 g of ice at 0. 00°c. Some of the ice melts and cools the water to 0. 00°c. When the ice and water mixture has come to a uniform temperature of 0°c, how much ice has melted?.
To calculate the amount of heat needed to melt ice;
Q = w x Cp x ∆T {where Cp is specific heat of material}
=100.0g (4.186J/g°c) (-60°C)
=-25116J
Heat lost by water is gained by ice,
q = m*ΔH
-25116J = m*333J/g
q = -75.4
Therefore, Mass of ice is 75.4 g.
What is mass?
It is a dimensionless quantity that expresses a particle or object's mass. The accepted unit of mass under the International System (SI) is the kilogram.
What is temperature?
Temperature is a measure of the average kinetic energy of the particles inside an object. The temperature increases cause these particles to move more quickly. It is possible to measure temperature using a thermometer or a calorimeter.
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what is the weight percent of vitamin c in a solution made by dissolving 2.60 g of vitamin c, c6h8o6 , in 55.0 g of water?
The weight percent of vitamin c in a solution made by dissolving 2.60 g of vitamin c, c6h8o6 , in 55.0 g of water 4.51 %
The percent by weight can be expressed as:
Percentage weight = solute /solution × 100 %
Now we have that the mass of the solution is
Mass of solution = mass of solute + mass of solvent
Mass of solution = 2.60g + 55.0g
Mass of Solution = 57.6g
Percentage weight = 2.60/57.6 × 100 = 4.51 %
When one or more solutes are dissolved in a solvent, the result is a homogenous mixture known as a solution. a solvent is a substance that helps a solute dissolve so that a homogenous mixture results. When a substance dissolves in a solvent, it forms a homogenous mixture, which is known as a solute.
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Why did the maya need to create innovative to manage water?
Answer:
to figure out how to sustain large populations in this environment.
brainliest plssAnswer:
The maya needed to create innovative ways to manage water because they lived in a dry climate.
They needed to find ways to collect water and store it for later use.
Explanation:
There were downpours during the unpredictable wet season and there was a long dry season
Not many rivers
what makes a element least likely to be a ionic compound
In water, an element can dissolve that is least likely to be an ionic compound.
What substances are most likely to result in ionic compounds?Ionic compounds typically form when metal and nonmetal elements are combined. For instance, the nonmetal chlorine (Cl) and metal calcium (Ca) combine to form the ionic compound calcium chloride.
Noble Gases are colorless gases with a very low reactivity. The noble gases are referred to as inert because they don't easily combine with other substances to form compounds. The noble gas family consists of helium, neon, argon, krypton, xenon, and radon.
Compound formation involving noble gases is extremely rare. They are incomprehensible gases that don't interact with other substances in their environment.
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You add 100. 0 g of water at 60. 0°c to 100. 0 g of ice at 0. 00°c. Some of the ice melts and cools the water to 0. 00°c. When the ice and water mixture has come to a uniform temperature of 0°c, how much ice has melted?.
The Mass of ice is 69.12g.
What is mass?
It is a dimensionless quantity that expresses a particle or object's mass. The accepted unit of mass under the International System (SI) is the kilogram.
What is temperature?
Temperature is a measure of the average kinetic energy of the particles inside an object. The temperature increases cause these particles to move more quickly. It is possible to measure temperature using a thermometer or a calorimeter.
first calculate the amount of heat as follows;
q= mass of water C= (0°C-55°C)
=100.0g (4.186J/g°c) (-55°C)
=-23023J
Heat lost by water is gained by ice,
-q=m*ΔH
-23023J= m*333J/g
= 69.12g
Therefore, Mass of ice is 69.12g.
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Use equation (14.2) to make a semilog plot of conduction electron concentration versus (1/kT) for intrinsic (pure) silicon. The conduction electron concentration in Si at T=293 K (room temperature) is 1010 cm−3. (b) Below what temperature are there essentially no charge carriers in pure Si (say, less than one carrier per cm3 )? (c) Is there some temperature below the melting point of Si (Tmelting =1690 K ) at which the conduction electron concentration in Si is comparable to that of a metal?
If the surface concentration is 1018 atoms/cm3, the depth below the surface at which the concentration is 1017 atoms/cm3 is 0.32 cm.
The expression is as follows:
erf (x / 2 D t) = (Cs - Cx) / (Cs - Co)
where Cs = surface concentration = 1018 atoms/cm3
Cx = depth concentration = 1017 atoms/cm3
Co - solute concentration in solid
erf stands for error function.
(1018 - 1017) / 1018 = (Cs - Cx) / (Cs - Co)
= 0.00098
erf (x / 2 D t) = 0.00098
0.000868 = x / 2 √ 2 × 10⁻² × 5 (3600) (3600)
x = 0.32 cm
0.32 cm is the depth.
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10. is the strength of intermolecular forces determined by the bond strengths within the individual molecules? explain your reasoning.
No, the strength of the bonds between the individual molecules did not determine the strength of the intermolecular interactions.
What does chemistry mean by intermolecular forces?Intermolecular forces are those that exist between molecules. It differs from an intra-molecular force, or the compel which exists within a molecule, because of this. A force within a molecule would therefore resemble an covalent bond. Intermolecular force is the name for the force that exists between molecules.
Which five intermolecular forces are there?Intermolecular forces come in five flavors: ion-induced dipole forces, directional antenna dipole forces, induced dipole forces, and dipole-dipole forces. Ions or polar (dipole) molecules are held together by ion-dipole forces. Molecules are connected via intermolecular bonds. The Van der Waals energies are another name for them.
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based on the position of the elements on the periodic table, which hydrogen bond would result in the greatest difference in electronegativity?
Of all the elements in the periodic table, nitrogen has one of the highest electronegative energies.
How do hydrogen bonds and electronegativity relate?
4 to 50 kJ per mole are the strengths of hydrogen bonds. As a result of the significant difference in electronegativity between the H atom and the N, O, or F atoms in molecules with N-H, O-H, or F-H bonds, the covalent connection between the H atom and these atoms is extremely polar (i.e., a bond dipole).
Electronegativity
Numerous techniques have been devised to quantitatively assess an element's tendency to gain or lose electrons since it is crucial to comprehend an element's chemistry to know whether it does so more frequently or less frequently. An element termed electronegativity is a component of the most crucial approach
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There’s three pictures because I couldn’t fit all of the question and answers in one but please help me it’s due soon
And I will mark brainliest
The reaction depicted in option D would not occur.
What is the reaction that would not occur?We know that a chemical reaction has to do with the interaction between species that are combined in a system. As the interaction is taking place, there would be a rearrangement of the atoms of the substance and a recombination of the atoms so as to obtain the products.
We can see that the kind of reaction that we are have here is a single replacement reaction. This implies that one of the species is replaced by the specie with which it reacts.
This is only possible if it is reactaing with a specie that is higher than it in the electrochemical series of the elements. The reaction in option D would not occur because the bromine is less than the chlorine in the electrochemical series.
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write the balanced net ionic equation for the reaction when aluminum nitrate and potassium iodide are mixed in aqueous solution. if no reaction occurs, simply write only nr. be sure to include the proper phases for all species within the reaction.
The balanced net ionic equation for the reaction when aluminum nitrate and potassium iodide are mixed in aqueous solution is:-
The net ionic equation is : Al3+(aq)+3OH−(aq)→Al(OH)3(s)
What is net ionic equation?
The net ion equation must be balanced by both mass and charge. Mass balance means that the mass of each element is the same on the product and reactant sides. Charge balancing means ensuring that the total charge is equal on both sides of the equation.
Therefore, The balanced net ionic equation for the reaction when aluminum nitrate and potassium iodide are mixed in aqueous solution is:-
The net ionic equation is : Al3+(aq)+3OH−(aq)→Al(OH)3(s)
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what are possible units for the reaction rate? group of answer choices l • mol–1 • s–1 s–2 mol • l–1 • s–1 s–1 l2 • mol–2 • s–1
The possible units for the reaction rate is mol L⁻¹ s⁻¹.
The rate of the reaction given reaction is :
aA +bB ---> cC + dD
r = k[A][B]
= -1/a Δ[A]/ Δt = -1/b Δ[B] / Δt = 1/c Δ[C] / Δt = 1/d Δ[C] / Δt
reaction rate = concentration / time
reaction rate unit is = concentration / time
concentration is moles per liter. therefore reaction rate unit is mol L⁻¹ s⁻¹. The rate of the reaction or we can say that the reaction rate is the speed of the reaction at which reactants are converted into the products.
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The only force acting on an object moving along the x-axis is the conservative force given by f(x) = (2. 00 n/m)x + (1. 00 n/m^3)x^3. What is the change in kinetic energy when the object moves from x = 1. 00 m to x = 2. 00 m?.
The change in kinetic energy when the object moves from x = 1. 00 m to x = 2. 00 m is -6.75J.
Given
Force [tex]$F(x)=2 x+x^3$[/tex]
Change in Potential Energy from x=1 to[tex]$x=2 \mathrm{~m}$[/tex] is given by
[tex]$$\begin{aligned}& \Delta U=\int F(x) d x \\& \Delta U=\int_1^2 F(x) d x \\& \Delta U=\int_1^2\left(2 x+x^3\right) d x \\& \Delta U=\left|x^2+\frac{x^4}{4}\right|_1^2 \\& \Delta U=6.75 J\end{aligned}$$[/tex]
(b)Change in Kinetic Energy
If the Force is conservative in nature then the total change in mechanical energy is zero thus
Thus [tex]$\Delta K . E .=U_1-U_2=-\Delta U=-6.75 . J$[/tex]
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a medical laboratory catalog describes the pressure in a cylinder of a gas as 14.82 mpa. what is the pressure of this gas in atmospheres and torr?
Ideal gas law is valid only for ideal gas not for vanderwaal gas. Therefore, the pressure in atm and torr is 148.2 atm and 1,12,632 torr respectively.
What is ideal gas equation?Ideal gas equation is the mathematical expression that relates pressure volume and temperature. There is no force of attraction between the particles.
pressure= 14.82 mpa
= 14.82 × 10⁶ pa
1 atm = 10⁵ pa
1 Pa = 1/10⁵ atm
pressure= 14.82 × 10⁶× 1/10⁵ atm
= 148.2 atm
1 atm = 760 torr
pressure= 148.2 ×760 torr
= 1,12,632 torr
Therefore, the pressure in atm and torr is 148.2 atm and 1,12,632 torr respectively.
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Indicate the direction of polarity of each of the covalent bonds by placing the appropriate delta notation next to each end of the bond. CO Answer Bank 6+ 5- 0–C1 0-F C-N C1-C SH S-C
the direction of polarity of each of the covalent bonds by placing the appropriate delta notation next to each end of the bond.
a water molecule, a typical illustration of polarity. There are two charges: a negative charge in the center (red shade) and a positive charge on either side (blue shade).
A bond's polarity results from the respective electronegativities of the constituent parts. Remember that an element's ability to draw electrons to itself when it is a component of a compound is known as electronegativity.
Chemical bond are formed when two or more atoms in a compound's molecule come contact and are tightly bound together. Covalent and ionic bond are the two different kinds of chemical bonding.
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at a certain temperature, the solubility of strontium arsenate, sr3(aso4)2, is 0.0500 g/l. what is the Ksp of this salt at this temperature?
According to the given statement Ksp for strontium arsenate is 9.98×·10⁻³
What is the purpose of arsenate?Arsenic is used in industry as an alloying agent in addition to being used to make glass, pigments, linens, cardboard, metal glue, wood preservatives, and ammunition. Arsenic is also used in several pesticides, feed additives, and pharmaceuticals, as well as in the tanning of skins.
Balanced chemical reaction (dissociation):
Sr₃(AsO₄)₂(s) → 3Sr²⁺(aq) + AsO₄³⁻(aq).
s(Sr₃(AsO₄)₂) = 0.0650 g/L.
s(Sr₃(AsO₄)₂) = 0.0500 g/L ÷ 540.7 g/mol = 9.24 mol/L.
s(Sr²⁺) = 3s(Sr₃(AsO₄)₂).
s(AsO₄³⁻) = 2s(Sr₃(AsO₄)₂).
Ksp = s(Sr²⁺)³ · s(AsO₄³⁻)².
Ksp = (3s)³ · (2s)².
Ksp = 108s⁵.
Ksp = 108 · (9.24 mol/L)⁵ = 9.98×·10⁻³
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After pyruvate is formed, it must either be converted to another molecule to enter the citric acid cycle and ultimately produce ATP by utilizing the electron-transport chain, produce NAD^+. Identify the products formed in the pathway of pyruvate and indicate whether NADH + H^+ or NAD^+ are produced under aerobic and anaerobic respiration. Drag the appropriate labels to their respective targets.
At the end of pyruvate pathway two carbon dioxide molecules, electrons, and one ATP molecule are produced as products.
Pyruvic acid can be made from glucose through glycolysis, and then it is converted back to carbohydrates (such as glucose) through gluconeogenesis, or to fatty acids through acetyl-CoA. It can also be used to construct the amino acid alanine, and it can be converted into ethanol.
Pyruvic acid supplies energy to the living cells through the citric acid cycle also known as the Krebs cycle, that is when oxygen is present (aerobic respiration); when oxygen is lacking, it generally ferments to produce lactic acid. Pyruvate is an important chemical compound in biochemistry. It is the output of the anaerobic metabolism of glucose known as glycolysis.
One molecule of glucose breaks down into two molecules of pyruvate, which are then used to provide further energy in one of two ways. Pyruvate is converted into acetyl- coenzyme A, which is the main input for a series of reactions known as the Krebs cycle. Pyruvate is also converted to oxaloacetate by an antipleuritic reaction, which replenishes Krebs cycle intermediates; also, oxaloacetate is used for gluconeogenesis.
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at a given temperature and pressure, it takes 4.00 min for a 7.50-l sample of oxygen (o2) to effuse through a membrane. how long will it take for a 7.50-l sample of methane (ch4) to effuse under the same conditions?
Time take for a 7.50-l sample of methane (ch4) to effuse under the same conditions is 2.84 min.
Effusion is defined as a loss of cloth throughout a boundary. A commonplace instance of effusion is the lack of gasoline interior of a balloon over the years. The fee at which gases will effuse from a balloon is stricken by a number of of things.
Calculation:-
t = 4 min
V = 7.5 L
rate O₂/rate CH₄ = √MCH₄/MO₂
(7.5 L/4) / (7.5/t) = √16/32
t/4 = 0.71
t = 2.84 min
Effluxion of time is the expiration of a rent time period due to a herbal passing of time in place of from a selected motion or event. This phrase also can be used to indicate the realization or expiration of an settlement in easy writing when the realization or expiration takes place thru a natural direction of events.
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this reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating h2 is desired. how many grams of cah2 are needed to generate 15 l of h2 gas if the pressure of h2 is 780 torr at 26c
According to the chemical reaction is CaH2(s)+2H20(l). Ca (OH)2+2H2(g). Now, according to the ideal gas equation n=PV/RT=0.48. According to stoichiometry=½*0.48= 0.23 moles. So that the mass of CaH2= moles*molar mass= 0.24mol*42g/mol= 10.2g is the final answer.
How is the ideal gas equation defined?PV = nRT is the equation for an ideal gas. In this equation, P stands for the ideal gas's pressure, V for the ideal gas' volume, n for the total amount of the ideal gas expressed in moles, R for the universal gas constant, and T for temperature.
The stoichiometric equation: what is it?The greatest amount of product that can be produced is determined by the stoichiometry of a balanced chemical equation. The relative amounts of reactants and products in a balanced chemical equation are described by a reaction's stoichiometry. You can see from the coefficients that 2 moles of CO2 are created for every 1 mole of C6H12O6. Using this proportion.
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how many l of oxygen (total) (at 350 degrees c and at 5.25 atm) are needed to convert 5.00 g of s to so3? s (solid) o2 (gas) --> so2 (gas) then 2so2 (gas) o2 (gas) --> 2so3 (gas)
2.19 liters of oxygen at 350 °C and at 5.25 atm are needed to convert 5.00 g of S to SO₃.
Using the equation- S + 3/2 O₂ → SO₃
Moles of sulfur- 5/32 = 0.15 mol
Given the stoichiometry, we require- 3/2 * 0.5
Mol of dioxygen gas = 0.225 mol.
And now we solve for volume in the Ideal Gas equation as V = nRT /PV
The equation of state for a fictitious ideal gas is known as the ideal gas law, sometimes known as the generic gas equation. Although it has some restrictions, it is a good approximation of the behavior of numerous gases under various circumstances. Benoît Paul Émile Clapeyron introduced it for the first time in 1834 as a synthesis of the empirical Boyle's law, Charles' law, Avogadro's law, and Gay-Lussac's law. The empirical form of the ideal gas law is frequently used:
PV=nRT
∴V = nRT /PV
⇒0.225 mol x 0.0821L atm K⁻¹ x 623 K / 5.25
⇒V= 2.19 L
Hence, 2.19 Liters of oxygen at 350 °C and at 5.25 atm are needed to convert 5.00 g of S to SO₃.
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