Answer:
22°C + 14.82°C = 36.82°C
Explanation:
We can use the formula:
q = mCΔT
where q is the heat absorbed by the water, m is the mass of the water, C is the specific heat of water, and ΔT is the temperature change of the water.
We are given q = 12,357 J, m = 234.2 g, and an initial temperature of 22C. The specific heat of water is 4.184 J/(g·°C).
Plugging in the numbers, we get:
12,357 J = (234.2 g)(4.184 J/(g·°C))(ΔT)
Solving for ΔT, we get:
ΔT = 14.82°C
Therefore, the final temperature of the water would be:
22°C + 14.82°C = 36.82°C
4) A voltaic cell consists of a copper electrode in a solution of copper(II) ions
and a palladium electrode in a solution of palladium(II) ions. The palladiu
is the cathode and its reduction potential is 0.951 V.
(a)
Write the half-reaction that occurs at the anode.
If E° is 0.609 V, what is the potential for the oxidation half-reaction
What is Keq for this reaction?
* LEA
The half-reaction that occurs at the anode is :
Cu(s) → Cu²⁺(aq) + 2e⁻The cell potential (Ecell) is 1.560 V
The Keq for this reaction is 6.98 x 10¹³
What are the half-reactions occurring in the voltaic cell?The half-reactions occurring in the voltaic cell are given below:
Cathode: Pd²⁺(aq) + 2e⁻ → Pd(s)
Anode: Cu(s) → Cu²⁺(aq) + 2e⁻
The half-reaction that occurs at the anode is the oxidation of copper:
Cu(s) → Cu²⁺(aq) + 2e⁻
The cell potential (Ecell) can be calculated using the formula:
Ecell = E°cathode - E°anode
Ecell = 0.951 V - (-0.609 V) (Note: E°anode is negative because it's an oxidation reaction)
Ecell = 1.560 V
(b) The equilibrium constant (Keq) can be calculated using the Nernst equation:
Ecell = E°cell - (RT/nF)lnKeq
where:
R = gas constant = 8.314 J/mol-K
T = temperature in Kelvin = 298 K
n = number of moles of electrons transferred in the balanced redox equation = 2
F = Faraday's constant = 96,485 C/mol
Rearranging the equation and solving for Keq, we get:
lnKeq = (nF/RT)Ecell - (nF/RT)E°cell
Keq = [tex]e^{(nF/RT)(Ecell - E^{o}cell)}[/tex]
Keq = [tex]e^{((296485)/(8.314298))(1.560 - 0.342)}[/tex]
Keq = 6.98 x 10¹³
Learn more about voltaic cells at: https://brainly.com/question/28302418
#SPJ1
A 25.50 gram sample of methyl alcohol changes from an initial temperature of 21.3°C to
a final temperature of 10.2°C. If the sample underwent a change in thermal energy of
-722 J, what is the specific heat of methyl alcohol? (Round answer to three significant
figures).
Answer:
a.25.50
Explanation:
Use bond energies to predict AH for the following reaction:
2NC1, (g) + 3H₂(g) → N₂ (9) + 6HCl(9)
(This problem requires values in your textbook's specific appendices, which you can access through the OWLV2 MindTap Reader. You should not use the OWLV2
References Tables to answer this question as the values will not match.)
AH-1
The AH for the reaction 2NC1(g) +[tex]3H_{2}[/tex](g) → [tex]N_{2}[/tex](g) + 6HCl(g) using bond energies is -1,074 kJ/mol, indicating an exothermic reaction.
To predict the enthalpy change (AH) of the reaction using bond energies, we need to calculate the energy required to break the bonds in the reactants and the energy released when the products' new bonds are established.
The AH of the reaction is the difference between the energy required to break the bonds in the reactants and the energy released when new bonds are formed in the products.
The following is the chemically balanced equation for the reaction:
2NC1(g) + [tex]3H_{2}[/tex](g) → [tex]N_{2}[/tex](g) + 6HCl(g)
The bond energies that we need are:
Bond energies to break:
N≡C1: 305 kJ/mol
H-H: 436 kJ/mol
Bond energies to form:
N≡N: 946 kJ/mol
H-Cl: 431 kJ/mol
Now we can calculate the energy required to break the bonds in the reactants:
2(N≡C1)(305 kJ/mol) + 3(H-H)(436 kJ/mol) = 2(610 kJ/mol) + 3(436 kJ/mol) = 2,218 kJ
We can also calculate the energy released when new bonds are formed in the products:
1(N≡N)(946 kJ/mol) + 6(H-Cl)(431 kJ/mol) = 1(946 kJ/mol) + 6(431 kJ/mol) = 3,292 kJ
Therefore, the AH of the reaction is:
AH = energy released when new bonds are formed minus energy needed to break existing bonds.
= -1,074 kJ/mol
The exothermic nature of the reaction, or the release of energy, is indicated by the negative sign. Therefore, the AH of the reaction is -1,074 kJ/mol.
Learn More about exothermic reaction here:
https://brainly.com/question/2924714
#SPJ1
When 35 mL of 0.92 M H2SO4 reacts with excess Al, how many L of H2 are formed at 23 °C and a
pressure of 0.980 atm?
2Al(s) + 3 H2SO4(aq) → Al2(SO4)3 aq) + 3 H2(g)
A chemical process known as an oxidation-reduction (redox) reaction occurs when electrons are exchanged between two or more species.
Thus, This happens between two distinct elements in the majority of redox reactions. The element that loses electrons is said to be the reducing agent and is oxidized.
The oxidizing agent is the element that obtains electrons and is reduced. These oxidation/reduction reactions in acidic or basic solution can be expressed as balanced half-reactions. The total balanced redox reaction equation is created by adding these balanced half-reactions.
This is an equation for a redox reaction. We must recognize changes in oxidation states that take place between elements in order to balance the equation.
Thus, A chemical process known as an oxidation-reduction (redox) reaction occurs when electrons are exchanged between two or more species.
Learn more about redox reaction, refer to the link:
https://brainly.com/question/13293425
#SPJ1
What is the charge of a magnesium ion? +
Because magnesium is in group two of the periodic table, a magnesium ion will most likely have a two-plus charge.
What is a charge?When placed in an electromagnetic field, the physical feature of matter known as electric charge causes matter to experience a force. A positive or negative electric charge can exist. Like charges repel one another, whereas unlike charges attract one another.
A neutral object is one that does not have any net charge.
When matter is placed in an electromagnetic field, it experiences a force due to its electric charge.
Learn more about charge here:
https://brainly.com/question/18102056
#SPJ1
Answer:2
Explanation:
The mass of all atoms is compared to the _________________ atom
Carbon
Oxygen
Hydrogen
Answer:
The mass of all atoms is compared to the carbon atom
Which variables did you control in this experiment?
(In the experiment, we had a silver can and a black can we used a measuring cup to measure out equal amounts of water which were put into both. A lamp was put on both, and we had to record results every 15 minutes, the temp)
The experimenters could isolate the effect of the color of the cans on the temperature of the water inside, assuming all other variables were held constant.
What is an experiment?A scientific or empirical approach of testing a hypothesis or looking into a particular phenomena or relationship between variables is to conduct an experiment. In order to monitor changes in one or more dependent variables, it entails changing one or more independent variables while holding all other variables constant.
The variables that were controlled in the experiment were:
The type of cans used (silver and black)The amount of water added to each can (measured out using a measuring cup)The temperature of the lamps used to heat both cans (assumed to be the same for both lamps)Learn more on chemical experiments here https://brainly.com/question/25769000
#SPJ1
What is a Symbol used in a chemical equation called
A symbol used in a chemical equation is called a chemical formula. A chemical formula is a shorthand notation that represents the type and number of atoms in a molecule or compound.
The elements are represented by their chemical symbols, and the number of atoms of each element is indicated by a subscript written to the right of the symbol. The chemical formula for a reactant or product in a chemical equation provides information about the identity and amount of substances involved in the reaction.
Chemical formulas are typically composed of chemical symbols and numerical subscripts that indicate the number of atoms or molecules of each element or compound present in the reaction.
For example, in the chemical equation [tex]H_2 + O_2[/tex] → [tex]2H_2O[/tex] , the chemical formulas are [tex]H_2[/tex], [tex]O_2[/tex], and [tex]H_2O[/tex], which represent the molecules of hydrogen gas, oxygen gas, and water, respectively.
Learn more about Chemical formulas at
brainly.com/question/31713710
#SPJ1
which force helps keep earth in its orbit around the sun
The force that helps keep the Earth in its orbit around the Sun is the gravitational force.
The Sun has a massive gravitational pull due to its large mass, which causes the Earth to be attracted towards it. This force of attraction is what keeps the Earth in its stable orbit around the Sun.
The gravitational force between the Sun and the Earth is balanced by the Earth's velocity and centrifugal force, which allows it to maintain a stable orbit around the Sun.
The gravitational force is the attractive force that exists between any two objects with mass. The magnitude of the gravitational force between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them.
This means that the larger the mass of the objects and the closer they are to each other, the stronger the gravitational force between them.
In the case of the Earth and the Sun, the Sun is much more massive than the Earth, which means it exerts a much stronger gravitational force on the Earth. The Earth is constantly falling towards the Sun due to the force of gravity.
However, the Earth also has a tangential velocity that keeps it moving in a circular orbit around the Sun. This is known as centrifugal force, which is the force that acts on an object moving in a circular path, pulling it away from the center of the circle.
For more question on gravitational force click on
https://brainly.com/question/28623512
#SPJ11
The solubility of sodium acetate is 46 g per 100 g H₂O at
20°C and 170 g per 100 g H₂O at 100°C. A solution is
prepared by adding 112 g of sodium acetate to 100g of water at
25°C, heating the solution to 100°C and cooling back to 20°C.
How much will recrystallize when a seed crystal is added?
The solution contains 66 g of sodium acetate, which is less than the maximum amount that can remain in the solution, no recrystallization occurs when a seed crystal is added.
Calculate the amount of sodium acetate that dissolves in 100 g of water at 25°C:
46 g NaC₂H₃O₂ / 100 g H₂O = x / 100 g H₂O
x = 46 g
Therefore, at 25°C, the solution is already supersaturated and contains 112 g - 46 g = 66 g of undissolved sodium acetate.
When the solution is heated to 100°C, all the sodium acetate dissolves, since the solubility at this temperature is 170 g per 100 g H₂O. The total mass of the solution is now 100 g + 112 g = 212 g.
When the solution is cooled back to 20°C, the solubility of sodium acetate decreases to 46 g per 100 g H₂O. The maximum amount of sodium acetate that can remain in solution at this temperature is:
46 g NaC₂H₃O₂ / 100 g H₂O x 212 g H₂O = 97.52 g NaC₂H₃O₂
All the sodium acetate remains dissolved in the solution.
To learn more about the solution, follow the link:
https://brainly.com/question/1616939
#SPJ1
What is thermal energy?
Answer fast please
Answer: D
Explanation:
Thermal energy is akin to kinetic energy, which is movement of particles in a substance.
True or false? Denitrifying bacteria and nitrogen fixing bacteria preform the same thing
Answer:
false
Explanation:
Denitrifying bacteria and nitrogen-fixing bacteria perform opposite processes in the nitrogen cycle. Nitrogen-fixing bacteria convert atmospheric nitrogen into usable forms such as ammonia, while denitrifying bacteria convert nitrates in the soil back into atmospheric nitrogen
An experiment is performed on an unknown material and produces the given heat curve. The temperature of the material is shown as a function of heat added.
The specific heat of the solid is 4.2 J/g/°C and the specific heat of the liquid is 36.3 J/g/°C.
How to calculate the valueIn this case, we know that the mass of the solid is 9.80 g, the change in temperature is 235 °C, and the heat added is 10,000 J. We can solve for the specific heat of the solid as follows:
c = Q / m ΔT
= 10,000 J / 9.80 g / 235 °C
= 4.2 J/g/°C
The latent heat of fusion for the unknown material is 334 J/g. We can now calculate the heat required to melt the solid as follows:
Q = mLf
= 9.80 g * 334 J/g
= 32,832 J
The total heat added to the liquid is 10,000 J + 32,832 J = 42,832 J. The change in temperature of the liquid is 235 °C - 20 °C = 115 °C. We can now calculate the specific heat of the liquid as follows:
c = Q / m ΔT
= 42,832 J / 9.80 g / 115 °C
= 36.3 J/g/°C
Therefore, the specific heat of the solid is 4.2 J/g/°C and the specific heat of the liquid is 36.3 J/g/°C.
Learn more about heat on
https://brainly.com/question/23120067
#SPJ1
An experiment is performed on an unknown material and produces the given heat curve. The temperature of the material is shown as a function of heat added. Other experiments determine that the material has a temperature of fusion of fusion=235 °C and a temperature of vaporization of vapor=471 °C.
If the sample of material has a mass of =9.80 g, calculate the specific heat when this material is a solid, s, and when it is liquid, l.
A 5.9 M solution with a volume of 4.1 L is diluted to a volume of 7.7 L. What is the
molarity of the final solution?
Answer: 3.142 M
Explanation:
use the dilution formula
M1V1=M2V2
M2= 5.9 X 4.1 / 7.7 = 3.142 M if need to correct sig figs its 3.1 M
Power plants that discharge warm water into rivers have a negative effect on aquatic
life. This is because the higher water temperature ?
Answer: hope this helps
Explanation: Reduces the amount of dissolved oxygen in the water, making it challenging for aquatic life to breathe. Fish require more oxygen because their metabolic rate increases in warm water. Additionally, it may alter the timing of aquatic organisms' life cycles and breeding patterns, as well as the rates at which some species grow. The food chain may be disrupted, and the health of the ecosystem as a whole may suffer. In order to reduce their negative effects on aquatic life, power plants that release warm water into rivers need to be carefully regulated.
Today State the five steps or procedure that is involved in physical Examination of organic compound
The physical examination of an organic compound are appearance and physical state, melting point and boiling point, solubility, density, and spectroscopic analysis
What are the five steps required?Appearance and physical state: observe the appearance of the compound and note its physical state.
Melting point and boiling point: measure the melting point and boiling point of the compound to determine its purity and identity.
Solubility: Test the solubility of the compound in different solvents such as water, ethanol, acetone, etc.
Density: determine the density of the compound to calculate its molecular weight and to assess its purity.
Spectroscopic analysis: use spectroscopic techniques such as nuclear magnetic resonance (NMR), and mass spectrometry (MS) to determine the functional groups, molecular structure, and identity of the compound.
Learn more about organic compound here: https://brainly.com/question/5994723
#SPJ1
The models below represent nuclear reactions. The atoms on the left of the equal sign are present before the reaction, and the atoms on the right of the equal sign are produced after the reaction.
Model 1: Atom 1 + Atom 2 = Atom 3 + energy
Model 2: Atom 4 = Atom 5 + Atom 6 + energy
Which of these statements is most likely correct about the two models?
Both models show reactions which use up energy in the sun.
Both models show reactions which produce energy in the sun.
Model 1 shows reactions in the sun and Model 2 shows reactions in the nuclear power plants.
Model 1 shows reactions in the nuclear power plants and Model 2 shows reactions in the sun.
Both models represent nuclear reactions that produce energy, but Model 1 is most likely to occur in the sun, while Model 2 is most likely to occur in nuclear power plants.
option B is correct.
Based on the given models, the statement that is most likely correct is: Both models show reactions which produce energy in the sun.
Model 1 represents a type of nuclear reaction called fusion, which is the process of combining two atomic nuclei to form a heavier nucleus. Fusion reactions occur naturally in stars like the sun, where the high temperatures and pressures allow atomic nuclei to overcome their natural repulsion and fuse together. The energy released by fusion reactions in the sun is what makes it shine and provides the energy for life on Earth.
Model 2 represents a type of nuclear reaction called fission, which is the process of splitting a heavy atomic nucleus into two or more lighter nuclei. Fission reactions are typically used in nuclear power plants to generate energy, where the heat produced by the fission reactions is used to produce steam and generate electricity. both models represent nuclear reactions that produce energy, but Model 1 is most likely to occur in the sun, while Model 2 is most likely to occur in nuclear power plants.
so, the correct option B
For more such questions on power plants
https://brainly.com/question/19090378
#SPJ11
The skier is able to coast between points s and t even though it is uphill because of
A- gravity
B-centripetal force
C- cohesive force
D- Intertia
The skier is able to coast between points s and t even though it is uphill because of gravity. The correct answer is A.
Gravity is the force that pulls objects towards each other. In the case of a skier coasting uphill between points s and t, gravity is still acting on the skier, pulling them towards the Earth. This gravitational force is what allows the skier to maintain their speed and momentum, even as they move uphill.
While centripetal force, cohesive force, and inertia are all important concepts in physics, they are not directly relevant to the scenario described in the question.
Centripetal force refers to the force that keeps an object moving in a circular path, cohesive force refers to the force that holds molecules together in a substance, and inertia refers to an object's tendency to resist changes in motion.
For more question on gravity click on
https://brainly.com/question/30944702
#SPJ11
Which set of products is correct for
this double replacement reaction?
2KI(aq) + Pb(NO3)2(aq) -
Remember that each formula must have a
balanced charge.
After considering all the given options we come to the conclusion that the set of products that are accurate for double replacement reaction is 2KNO₃ (aq) + PbI₂ (s), which is Option D under the condition that the given reaction is 2KI(aq) + Pb(NO₃)₂(aq).
A double replacement reaction generally comprised of reactions in regarding the positive and negative ions of two ionic compounds exchanges locations to form two new compounds. The general form for this type reaction is: AB + CD → AD + CB .
For instance, when silver nitrate (AgNO₃) is added with sodium chloride (NaCl), the following reaction takes place AgNO₃ + NaCl → AgCl + NaNO₃ ²
The correct set of products for the double replacement reaction 2KI(aq) + Pb(NO₃)₂(aq) is 2KNO₃ (aq) + PbI₂ (s).
To learn more about double replacement reaction
https://brainly.com/question/27941291
#SPJ1
What is the [H+] of a solution that has a [OH-] = 1.2 x 10-3 M?
Answer:
[OH⁻] = 8.33 * 10⁻¹²
Explanation:
We know that [OH⁻] * [H⁺] = 10⁻¹⁴
plugging the value of [H⁺]
[OH⁻] * 1.2 * 10⁻³ = 10⁻¹⁴
[OH⁻] = 10⁻¹⁴ * (10³/1.2)
[OH⁻] = 833.3 * 10⁻¹⁴
[OH⁻] = 8.33 * 10⁻¹²
What is the IUPAC name for Fe203?
2NO(g)+O2(g)→2NO2(g)
If 98.3L of NO2 forms, measured at 39.0∘C and 631 mmHg, what is the percent yield?
The percent yield of the reaction 2NO(g)+O₂(g)→2NO₂(g) is 7.98%.
Mole ratio of NO to NO₂ is 2:2 or 1:1. Therefore, the number of moles of NO₂ formed is equal to the number of moles of NO reacted.
For an ideal gas, PV = nRT
n = PV/RT where temperature is in kelvin
volume of NO₂ formed = 98.3 L
temperature = 39.0°C or 312.15 K
pressure = 631 mmHg or 0.830 atm
n(NO) = PV/RT \
= (0.830 atm)(98.3 L)/(0.0821 L·atm/mol·K)(312.15 K)
= 33.6 mol
Since, the ratio is 1:1 yield of NO₂ is also 33.6 mol.
Actual yield can be found by converting moles in molar mass of NO₂
NO₂: 1 × 14.01 + 2 × 16.00 = 46.01 g/mol
If the mass of NO2 obtained was 123.4 g. Then the number of moles of NO₂ is
n(NO₂) = m/M = 123.4 g/46.01 g/mol = 2.68 mol
% yield = (actual yield/theoretical yield) x 100%
= (2.68 mol/33.6 mol) x 100%
= 7.98%
Learn more about percent yield at:
brainly.com/question/2506978
#SPJ1
What is a periodic table?
Answer:
a composition of elements
which bodies of water can affect climate. use these words in your answer:land breeze,sea breeze,and ocean current
Bodies of water can have a significant impact on climate in several ways, including through the influence of sea breezes, land breezes, and ocean currents.
Sea breezes occur when cooler air from over the water moves towards the warmer air over land. This movement of air can affect the temperature and humidity of coastal areas. During the day, the land heats up faster than the ocean, creating a low-pressure area over the land. The cool air over the ocean then moves towards the warmer, low-pressure air over the land, creating a sea breeze. The opposite occurs at night, when the land cools off faster than the ocean, creating a high-pressure area over the land, and causing a land breeze to blow from the land towards the ocean.
Ocean currents also play a significant role in climate. These currents are like rivers in the ocean, moving water from one place to another. They can transport heat from warmer to cooler areas, affecting the temperature and weather patterns of coastal regions. For example, the Gulf Stream, a warm ocean current that originates in the Gulf of Mexico and flows towards Europe, helps keep the climate of coastal Europe relatively mild.
In addition to sea breezes and ocean currents, bodies of water can also affect climate through their thermal properties. Water has a higher specific heat than land, meaning it can absorb and retain more heat energy. This can result in cooler temperatures near bodies of water during the summer and warmer temperatures during the winter, as the water releases or absorbs heat from the surrounding air.
Overall, bodies of water have a significant impact on climate through their influence on sea breezes, land breezes, ocean currents, and thermal properties. Understanding these processes is essential for predicting and managing climate patterns, particularly in coastal areas.
5)
If I have 37 moles of gas at a temperature of 167 °C, and a volume of 68 liters,
what is the pressure of the gas?
Answer: Pressure of the gas is 19.65 atm.
Explanation: Known quantities=
No of moles=37
Temperature=167 °C=440K
Volume=68 liters
unknown quantities
Pressure=x atm
The unknown quantity pressure can be found out by using the ideal gas law equation given by:
PV=nRT ---------- (1)
P = pressure.
V =volume.
n =amount of substance.
R= ideal gas constant.
Substituting the values in equation (1)
P=(37x0.0821x440)/(68)
=19.65 atm
For more information on ideal gas law refer,
https://brainly.com/question/27870704
need to know who to do this
Answer: Shown below
Explanation:
CaCl2=calcium chloride
Mg(NO3)2=Magnesium nitrate
ZaCl2=Zinc Chloride
NH2Cl=Chloramine
AgNO2=Silver nitrate
NaCl= Sodium chloride
KI=Potassium iodide
PbSO4=Lead(II) Sulfate
n82CO3=Sodium carbonate
KNO3=Potassium nitrate
N82SO4=Sodium Sulfate.
I hope this helped please give Brainliest!
The name of the compounds and the involved ion are as follows;
CaCl₂ = Calcium chloride (Ca²⁺, 2Cl⁻)Mg(NO₃)₂ = Magnesium nitrate (Mg²⁺, NO₃²⁻)ZnCl₂ = Zinc Chloride (Zn²⁺, 2Cl⁻)NH₂Cl = Chloramine (NH₂⁺, Cl⁻)AgNO₂ = Silver nitrate (Ag⁺, NO₂⁻)NaCl = Sodium chloride (Na⁺, Cl⁻)KI = Potassium iodide (K⁺, I⁻)PbSO₄ = Lead(II) Sulfate (Pb²⁺, SO₄²⁻)Na₂CO₃ = Sodium carbonate (2Na⁺, CO₃²⁻)KNO₃ = Potassium nitrate (K⁺, NO₃²⁻)Na₂SO₄ = sodium sulphate (2Na⁺, SO₄²⁻)What is an ionic compound?Ionic compound is any of a large group of chemical compounds consisting of oppositely charged ions, wherein electron transfer, or ionic bonding, holds the atoms together.
Ionic compounds, when in an aqueous solution, dissociates into its respective ions. This question gives the chemical formula of certain compounds. For example, the sodium ions attract chloride ions and the chloride ion attracts sodium ions. The result is a three-dimensional structure of alternate Na⁺ and Cl⁻ ions.
The names of the chemical compound and the ionic elements that make them up are given in the main answer part.
Learn more about ionic compounds at: https://brainly.com/question/9167977
#SPJ1
what type of chemical reaction an electric current passing through water and reducing it to hydrogen and oxygen
Answer:
Electrolysis of water
Explanation:
decomposition of water into oxygen and hydrogen due to an electric current being passed through the water.
WILL GIVE BRAINIEST TO THE RIGHT ANSWER WITH WORK ---- What mass of helium gas is needed to pressurize a 100-L tank to 225 atm at 25 C? What mass of oxygen gas would be needed to pressurize a similar tank to the same specifications?
Explanation:
We determine the mass of the helium gas,
mHe, that is required to produce the given sample. We do this by first considering that neon gas behaves ideally with the given conditions, such that we use the equation
PV=nRT
where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature. Moreover, we express the number of moles as:
n= mMW
where 'MW is the molar mass. We use the following values for the variables:
P =255atm
V =100.0 L
R = 0.08206Latm/molK
T = 25 + 273= 298 K
MW = 4.003 g/mol
We proceed with the solution.
We would need a total of 4.17×103 grams of helium gas.Now, we determine the mass when we are going to consider oxygen gas. We would be applying the same working equation but we use a different value for MW, wherein we have
MW=16.00g/mol
We proceed with the solution and plug in the variables
We would need a total of 1.67×10^4 grams of oxygen gas.
(Hopefully this helps u out!)
Read each description of the various conditions that are likely to affect the pressure of a gas. Drag each description into the correct box. temperature of the container rises from 20°C to 30°C more molecules of the gas are introduced in the container volume of the container holding the gas is increased temperature of surroundings is lowered from 15°C to 10°C
Temp. is lowered from 15 to 10 degrees C: Pressure decreased
Temp. rises from 20 to 30 degrees C: Pressure increased
More molecules of gas are introduced into the container: Pressure increased
The volume of the container holding gas is increased: Pressure decreased
The pressure of a gas is affected by several factors, such as temperature, the number of gas molecules present, and the volume of the container.
When the temperature of a gas is lowered, the kinetic energy of the gas molecules decreases. As a result, the molecules move slower and exert less force on the walls of the container, causing the pressure to decrease.
Conversely, when the temperature is raised, the kinetic energy of the gas molecules increases, leading to more collisions with the walls of the container and an increase in pressure.
When more gas molecules are added to a container, there are more collisions between the gas molecules and the walls of the container. This increase in collisions leads to an increase in pressure. On the other hand, if the number of gas molecules is decreased, there are fewer collisions with the walls of the container, resulting in a decrease in pressure.
Finally, the pressure of a gas is inversely proportional to the volume of the container holding the gas. When the volume of the container is increased, the gas molecules have more space to move around, and fewer collisions occur with the walls of the container.
As a result, the pressure decreases. Conversely, when the volume of the container is decreased, the gas molecules have less space to move, leading to more collisions with the walls of the container and an increase in pressure.
For more question on pressure click on
https://brainly.com/question/24719118
#SPJ11
PROPER QUESTION
Read each description of the various conditions that are likely to affect the pressure of a gas. Drag each description into the correct box.
Temp. is lowered from 15 to 10 degrees C
Temp. rises from 20 to 30 degrees C
More molecules of gas are introduced into the container
The volume of the container holding gas is increased
Box:
Pressure increased
Pressure decreased
Which of the arrows in the energy-level diagram represent transitions involving the greatest change in energy?
The transition that involves the greatest change in energy is the transition shown by (f)
What is energy transition in the atom?When an electron moves from one energy level to another, this is referred to as an energy transition in an atom. An atom's electrons can be found in various orbitals or energy levels, and because these levels are quantized, only specific values are permitted.
The transition in f involves a movement from n = 1 to n =4 that shows a great involvement of energy for such to occur.
Learn more about energy transition:https://brainly.com/question/29376664
#SPJ1