Answer:
V₂ = 956.52 L
Explanation:
Given data:
Initial pressure = 4 atm
Initial volume = 550 L
Final volume = ?
Final pressure = 2.3 atm
Solution:
The given problem will be solved through the Boyle's law,
"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"
Mathematical expression:
P₁V₁ = P₂V₂
P₁ = Initial pressure
V₁ = initial volume
P₂ = final pressure
V₂ = final volume
Now we will put the values in formula,
P₁V₁ = P₂V₂
4 atm × 550 L = 2.3 atm × V₂
V₂ = 2200 atm. L/ 2.3 atm
V₂ = 956.52 L
11. What is the expression 1 in. = 2.54 cm properly called?
(a) equation
(b) conversion factor
(c) SI factor
(d) equivalence statement
Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 3.00 molesmoles of aluminum sulfate, Al2(SO4)3Al2(SO4)3. Express the number of moles of AlAl, SS, and OO atoms numerically, separated by commas.
Answer:
[tex]n_{Al}=6.00molAl\\\\n_{S}=9.00molS\\\\n_{O}=36.0molO[/tex]
Explanation:
Hello!
In this case, when analyzing the moles of an element inside a compound, we need to keep in mind that a mole ratio should be set up; thus, for aluminum sulfate, we have the following ones:
[tex]\frac{2molAl}{1molAl_2(SO_4)_3} \\\\\frac{3molS}{1molAl_2(SO_4)_3} \\\\\frac{12molO}{1mol1molAl_2(SO_4)_3}[/tex]
Thus, starting by 3.00 moles of aluminum sulfate, the moles of each element turn out:
[tex]n_{Al}=3.00molAl_2(SO_4)_3*\frac{2molAl}{1molAl_2(SO_4)_3} =6.00molAl\\\\n_{S}=3.00molAl_2(SO_4)_3*\frac{3molS}{1molAl_2(SO_4)_3} =9.00molS\\\\n_{O}=3.00molAl_2(SO_4)_3*\frac{12molO}{1molAl_2(SO_4)_3}=36.0molO[/tex]
Best regards!
What does point of view refer to?
the purpose of whoever is telling the story
the age of whoever is telling the story
the perspective of whoever is telling the story
Answer:
I'd say the most reasonable answer is perspective.
Explanation:
"Point of view" is about who is telling and sharing the details in what you are writing or reading. I'm not 100% sure because the word "perspective" doesn't seem like the right word to use, but it's better than the other two in my opinion.
The moons of Jupiter
orbit Jupiter because
they are pulled toward
Jupiter. The moons of
Jupiter are too far to
be pulled into Earth's
orbit.
Yes or No
Answer:
Yes
Explanation:
Jupiter is a very large planet. Larger planets usually have stronger gravity, which pulls planets toward each other.
The moons of Jupiter are by Jupiter. (I know, that wasn't a smart thing to say because you know that, but, hey, I had to.) With this being the case, Jupiter is also an inside planet.
- Inside Planets
Planets that are closest to the sun and orbits the sun
There are 2 things that are the cause of the moons of Jupiter not being pulled by earth.
1. Jupiter has strong gravity which pulls the moons, and Jupiter is being pulled by the sun's INCREDIBLE gravity.
2. Earth is an outside planet. It is too far away from Jupiter to attract Jupiter's moons.
- Outside Planet
A planet that is away from the sun, but still orbits the sun
Hope this helps! :D
If you want to know more about the sun, just call on me!!!!
Yes, The moons of Jupiter orbit Jupiter because they are pulled toward Jupiter. The moons of Jupiter are too far to be pulled into Earth'orbit.
What is orbit ?A planet's orbit around a star, a natural satellite's orbit around a planet, or an artificial satellite's orbit around a space object or location like a planet, moon, asteroid, or Lagrange point are all examples of curved objects that follow this path.
A planet's orbit around a star, a natural satellite's orbit around a planet, or an artificial satellite's orbit around a space object or location like a planet, moon, asteroid, or Lagrange point are all examples of curved trajectories in celestial mechanics known as orbits.
Around a star, a natural satellite's orbit around a planet, or an artificial satellite's orbit around a space object or location like a planet, moon, asteroid, or Lagrange point are all examples of curved objects that follow this path.
Yes, The moons of Jupiter orbit Jupiter because they are pulled toward Jupiter. The moons of Jupiter are too far to be pulled into Earth'orbit.
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DEFINITION: ABILITY OF A SUBSTANCE TO BE DISSOLVED
Answer:
Solubility
Explanation:
If its not that the answer is Dissolvable.... you didn't give a word bank.
:))))))))))
has DNA that tells the rest of the organelles what to do
Answer:
No
Explanation:
i honestly don't know
Is it more difficult to remove a valence electron from a Magnesium (Mg) atom or a Chlorine (Cl) atom
Answer: It is more difficult to remove a valence electron from a Chlorine (Cl) atom
Explanation:
Ionization energy is the energy required to remove the valence electron from an isolated gaseous atom.
Magnesium (Mg) is the 12th element of periodic table and has an atomic number of 12. The electronic configuration is 2, 8, 2. It can easily lose its valence 2 electrons to attain stable configuration.
Chlorine (Cl) is the 17th element of periodic table and has an atomic number of 17. The electronic configuration is 2, 8, 7. It has a tendency to gain electron to attain stable configuration. It cannot lose its valence electron easily as the valence electrons experience more nuclear charge.
Thus it is more difficult to remove a valence electron from a Chlorine (Cl) atom
Chlorine(Cl) is the more difficult to remove a valence electron from which is
because it needs one electron to achieve a stable octet configuration.
Magnesium (Mg) is an element which has an atomic number of 12. The
electronic configuration is 2, 8, 2. This means it has to lose its 2 valence
electrons needed to attain a stable octet configuration.
Chlorine (Cl) is an element which has an atomic number of 17. The electronic
configuration is 2, 8, 7. This means it has to gain one valence electrons
needed to attain a stable octet configuration.
Thus it is more difficult to remove a valence electron from a Chlorine (Cl)
atom than Magnesium atom.
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1. What 3 types of bonds are typically found in biological organisms?
Answer:
Chemical bonds. Chemical bonds are the connections between atoms in a molecule. ...
Covalent Bonds. Chemical bonds are the forces of attraction that tie atoms together. ...
Ionic Bonds. ...
Bonds, Stability, and Compounds.
Answer:
Ionic bonding.
Covalent bonding.
Metallic bonding.
Which process causes earth surface to warm
A drug is commercially available in capsules each containing 12.5 mg of drug and 37.5 mg of diluent. How many milligrams of additional diluent must be added to the contents of one capsule to make a dilution containing 0.5 mg of drug in each 100 mg of powder
Answer:
2450 mg
Explanation:
From the given information:
The total weight of the capsule = 12.5 mg + 37.5 mg
= 50 mg
The percentage of drug in each capsule = [tex]\dfrac{12.5}{50} \times 100[/tex]
= 25%
= 0.25
To make 0.5 mg of drug in each 100 mg of powder after dilution;
Then, the drug percent in each capsule after dilution is:
[tex]=\dfrac{0.5}{100}\times 100[/tex]
= 0.5%
= 0.005
Suppose (p) mg represent the amount that is added to the diluent in the given capsule. Then;
The total amount is = (50 + p) mg
Since the amount of the drug = 12.5 mg
Then the concentration [tex]=\dfrac{12.5}{50 + x}[/tex] which needs to be equal to the needed concentration that is diluted.
i.e.
[tex]\dfrac{12.5}{50 + x} = 0.005[/tex]
By cross multiply;
(50 + x) 0.005 = 12.5
(50 × 0.005) + (0.005x) = 12.5
0.25 + 0.005x = 12.5
0.005x = 12.5 - 0.25
0.005x = 12.25
x = 12.25 / 0.005
x = 2450 mg
Thus, there is a need for an additional 2450 mg to make a dilution that compass 0.5 mg of drug in 100 mg powder.
3. How many atoms are in 2 moles of Carbon?
Answer:
Explanation:
In one mole of carbon, there are 6.02×10^23 atoms. So in two moles, there will be twice that: 1.204×10^24
Please help me thanks so much....I’ll mark you?!?!:)))) ( 32 points)
Answer:
I believe it's chemical
Answer:
physical
Explanation:
it's not changing form or substance
the diagram below represents the electromagnetic spectrum with some of the regions labeled with letters. Visble light is represented by which letter?
Answer:D
Explanation:
What part of the leaf is responsible for absorbing the sun’s energy?
Answer:chlorophyll
Explanation:
The part of leaves that is responsible for absorbing sun's energy is chloroplast.
What is chloroplast?A chloroplast is an organelle found within the cells of plants and certain algae that is responsible for photosynthesis, which is the process by which solar energy is converted into chemical energy for growth.
Small organelles called chloroplasts are found inside plant cells and store sunlight energy.
The chloroplast's thylakoid membranes contain a light-absorbing pigment called chlorophyll, which is responsible for the plant's green color.
They are in charge of photosynthesis, which is the process of converting light energy into sugar and other organic molecules that plants and algae use as food.
They also produce amino acids and lipids, which are required for the production of chloroplast membranes.
Thus, the chloroplast is the part that traps the energy of the Sun.
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What is The Magnus Effect/Force? Explain.
Answer:
dk
Explanation:
Which has the larger first ionization energy—magnesium or phosphorus?
a
Phosphorus has the greater first ionization energy.
b
Magnesium and phosphorus have equal first ionization energies.
c
Magnesium, but not phosphorus, has a measurable first ionization energy.
d
Magnesium has the greater first ionization energy.
Answer:
The correct option is a
Explanation:
First ionization energy is the minimum amount of energy required to remove the most loosely bound electron (valence electron) from the outermost shell of a gaseous or neutral atom. Since it takes more amount of energy to remove more electrons, it (ionization energy) generally increases across the period and decreases down a group because the closer the outermost shell is to the nucleus, the more difficult/energy required to remove electrons in that shell.
Since magnesium and phosphorus are on the same period (period 3), it can be deduced from the explanation above that phosphorus has a greater first ionization energy than magnesium because phosphorus (5 valence electrons) has more electrons in it's outermost shell than magnesium (2 valence electrons).
Which of the following represents a ternary ionic compound that is also multivalent?
A.Mn(CIO3)2
B. Mno
C. NH3
D. HCIO3
Work and energy unit test
Answer:
whats your question
Explanation:
In the following pair, determine whether the two represent resonance contributors of a single species or depict different substances. If two structures are not resonance contributors, explain why. Select the single best answer.
N-N ≡ N: and N=N=N:
Answer:
They are resonance contributors
Explanation:
Resonance structures are structures that differ only in the distribution or placement of electrons.
Considering the two structures, we can easily see that the two species have the same total number of bonds and electrons differing only in the distribution of these electrons.
Hence, they are resonance contributors.
Is the enzyme lactase a catalyst? why or why not?
Answer:
Explanation:
The enzyme lactase acts as a catalyst to facilitate the reaction and make it happen very quickly. This enzyme is made u.
do the rest
hope it helps
Enzyme lactase catalyzes the hydrolysis of the glycosidic bond of lactose to form galactose and glucose.
What is lactase?Lactase can be described as an enzyme produced by many organisms. Lactase is located in the small intestine of humans and other mammals. It is essential to accomplish the digestion of milk and it breaks down lactose that gives milk its sweetness.
A person with a deficiency of lactase, and who consume dairy products, may experience the symptoms of lactose intolerance. Lactase is a part of the β-galactosidase family of enzymes and is a glycoside hydrolase involved in the hydrolysis of lactose into constituent galactose and glucose monomers.
The β-glycosidic bond in D-lactose in metabolism is hydrolyzed to form D-galactose and D-glucose, which can be absorbed into the bloodstream. The optimum temperature of the human lactase is about 37 degrees Celcius and the optimum pH of the human lactase is equal to 6.
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can u pls help me with this question
Answer:
B
Explanation:
A 1.00-L flask was filled with 2.00 moles of gaseous and 2.00 moles of gaseous and heated. After equilibrium was reached, it was found that 1.21 moles of gaseous was present. Assume that the reaction
SO2 + NO2 ⇌ SO3 + NO
occurs under these conditions. Calculate the value of the equilibrium constant, K, for this reaction.
Answer:
2.35
Explanation:
A 1.00-L flask was filled with 2.00 moles of gaseous SO₂ and 2.00 moles of gaseous NO₂ and heated. After equilibrium was reached, it was found that 1.21 moles of gaseous NO was present. Assume that the reaction
SO₂ + NO₂ ⇌ SO₃ + NO
occurs under these conditions. Calculate the value of the equilibrium constant, K, for this reaction.
Step 1: Calculate the molar concentrations
Since the reaction takes place in a 1.00 L flask, the molar concentrations are:
[SO₂]i = 2.00 M
[NO₂]i = 2.00 M
[NO]eq = 1.21 M
Step 2: Make an ICE chart
SO₂ + NO₂ ⇌ SO₃ + NO
I 2.00 2.00 0 0
C -x -x +x +x
E 2.00-x 2.00-x x x
Step 3: Calculate the concentrations at equilibrium
The concentration of NO at equilibrium is 1.21 M. Then, x = 1.21.
[SO₂]eq = 2.00-1.21 = 0.79 M
[NO₂]eq = 2.00-1.21 = 0.79 M
[SO₃]eq = x = 1.21 M
[NO]eq = x = 1.21 M
Step 4: Calculate the value of the equilibrium constant, K, for this reaction
K = [SO₃] × [NO]/[SO₂] × [NO₂]
K = 1.21²/0.79² = 2.35
For the following reaction, 22.5 grams of iron are allowed to react with 35.0 grams of chlorine gas . iron(s) chlorine(g) iron(III) chloride(s) What is the maximum mass of iron(III) chloride that can be formed
Answer:
53.31g of FeCl3
Explanation:
The equation of the reaction is given as;
2Fe(s) + 3Cl2(g) --> 2FeCl3(s)
From the stochiometry of the reaction;
2 mol : 3 mol : 2 mol
112g : 213g : 324.4g
Converting the masses given to moles;
Number of moles of Fe = mass / molar mass = 22.5 / 56 = 0.4018
Number of moles of Cl2 = mass / molar mass = 35 / 71 = 0.4930
In this reaction, the limiting reactant is Cl2
213 g of Cl2 produces 324.4g of FeCl3,
35g of Cl2 would produce xg of FeCl3
213 = 324.4
35 = x
x = (35 * 324.4) / 213 = 53.31g
determine the mass of 840 cm3 of oxygen gas, O2 at rtp
Answer:
Mass = 0.96 g
Explanation:
Given data:
Volume of oxygen = 840cm³
Temperature = at room = 25°C
Pressure = at room = 1 atm
Mass of oxygen = ?
Solution:
Volume of oxygen = 840 cm³ × 1 L /1000 cm³ = 0.84 L
Temperature = 25 +273.15k = 298.15 K
Formula:
PV = nRT
n = PV/RT
R = 0.0821 atm.L/mol.K
n = 1 atm × 0.84 L / 0.0821 atm.L/mol.K × 298.15 K
n = 0.84 atm.L / 24.48 atm.L/mol
n = 0.03 mol
Mass of oxygen:
Mass = number of moles × molar mass
Mass = 0.03 mol × 32 g/mol
Mass = 0.96 g
The atomic number of sodium (Na) is 11. The element phosphorus (P) is the fourth element to the right of sodium in the periodic table.
The atomic number of phosphorus is ____. It has zero charge because it had ____ electrons.
Answer:
atomic number of phosphorous is 15. It has zero charges because it has equal number of protons and electrons
Explanation:
What do we call the energy that travels from the sun in the form of waves
Answer:
Solar energy is essentially the light and heat emitted from the sun
7. Based on the conclusion in question 5, what type of leaves would be most beneficial for plants indigenous (native) to a desert?* O Wide leaves, with high surface area O Thin narrow leaves, with low surface area It wouldn't make a difference - any leaves will work in any area. PLEASE HElP ASAP PLEASEEEEEEE
Answer:
I don't know what question 5's conclusion is but if i were to take a guess here i would say wide leaves with a high surface area
Explanation:
to soak up water and maybe provide shade for the roots and dirt under the plant.
What is the ratio of carbon, hydrogen, and oxygen in most carbohydrates?
A.
1:1:1
B.
1:2:1
C.
1:2:3
D.
2:1:1
E.
2:2:1
Answer:
1:2:1
Explanation:
i just think hai .its just a guess from my side...sorry if i m wrong...
Answer:
1:2:1
Explanation:
Hello person in the future. Good luck with your test and I hope you do great things with your life. You got this!! :D
how many grams from a 100 grams sample of fe2o3 is iron
Answer:
40 Grams
Explanation:
Fe2O3 is 2 parts Iron 3 parts Oxygen.
Assuming the molecular weights of both are equivalent (ideal elemental law), it is a 2:3 ratio, or 2/5 of the total.
2/5 of 100 is 40, so the answer is
40 grams
If a dog has a mass of 16.1 kg, what is its mass in the following units? Use scientific notation in all of your answers.
g
mg
ug
Answer:
[tex]16.1\times 10^3\ \text{g}[/tex]
[tex]16.1\times 10^{6}\ \text{mg}[/tex]
[tex]16.1\times 10^{9}\ \mu\text{g}[/tex]
Explanation:
Mass of dog = [tex]16.1\ \text{kg}[/tex]
[tex]1\ \text{kg}=10^{3}\ \text{g}[/tex]
[tex]1\ \text{kg}=10^{6}\ \text{mg}[/tex]
[tex]1\ \text{kg}=10^{9}\ \mu\text{g}[/tex]
So,
[tex]16.1\ \text{kg}=16.1\times 10^3\ \text{g}[/tex]
[tex]16.1\ \text{kg}=16.1\times 10^{6}\ \text{mg}[/tex]
[tex]16.1\ \text{kg}=16.1\times 10^{9}\ \mu\text{g}[/tex]
Mass of the dog in the other units is [tex]16.1\times 10^3\ \text{g}[/tex], [tex]16.1\times 10^{6}\ \text{mg}[/tex] and [tex]16.1\times 10^{9}\ \mu\text{g}[/tex].