1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Helen [10]
3 years ago
7

3. If a gas exerts 1.2 atm of pressure at a volume of 31 liters and a temperature of 360K, how many moles of the gas are in the

container.​
Chemistry
1 answer:
Mashcka [7]3 years ago
5 0
The answer is 1.26 Mol

n = PV/RT= (1.2 atm)(31 L) / (0.0821 )(360K) = 1.26 mol H2


You might be interested in
If 2.0 liters of oxygen gas react with excess carbon monoxide at 273 K and 1.00 atm, how many liters of carbon dioxide can be pr
vlada-n [284]
The given condition is STP, under this condition, gas has a rule of 22.4 L per mole. And the given equation is already balanced. The ratio of mole number is the same as the ratio of the volume and is also the same as the ratio of coefficients. So the answer is 4.0 liters. 
5 0
3 years ago
Which climate is most likely found in a high pressure belt giving brainliest ty
Advocard [28]

Answer:

Rain forest.

Explanation: Because of how humid it is in a rain forest that humidity will bring a lot of pressure from above.

7 0
2 years ago
Read 2 more answers
what is an empirical formulaWhat is the percent composition by mass of nitrogen in (NH4)2CO3 (gram-formula mass = 96.0 g/mol)?
Margarita [4]

Answer:

Percentage composition = 14.583%

Explanation:

In chemistry, the emprical formular of a compound is the simplest formular a compound can have. It shows the simplest ratio in which the elements are combined in the compound.

Percentage composition by mass of Nitrogen

Nitrogen = 14g/mol

In one mole of the compound;

Mass of Nitrogen = 1 mol * 14g/mol = 14g

Mass of compound = 1 mol * 96.0 g/mol = 96

Percentage composition of Nitrogen = (Mass of Nitrogen /  Mass of compound) * 100

percentage composition = 14/96   * 100

Percentage composition = 0.14583 * 100

Percentage composition = 14.583%

3 0
3 years ago
Devise a way to separate a mixture of sand, salt, and iron filings. Write the procedure using a step-by-step method and explain
aev [14]
1. Iron fillings are magnetic, so use a magnet to pull the iron fillings out of the mix.
2. Then you can put the salt and sand mixture into water, since salt is soluble, and the salt will dissolve, leaving you with sand.
3 0
3 years ago
A solution of an unknown nonvolatile nonelectrolyte was prepared by dissolving 0.250 g of the substance in 40.0 g of ccl4. the b
Finger [1]
Answer : The molar mass of the solute will be 87.90 g/mol.

Explanation : We know the formula for elevation in boiling point, which is

Δt = iK_{b}m

given that, Δt = 0.357, K_{b} = 5.02 and mass of CCl _{4} = 40,

on substituting the value we get,
0.357 = (1) X (5.02) X (x/ 0.044), on solving we get x = 2.844 X10^{-3}. 
Now, 0.250/ 2.844 X10^{-3} = 87.90 g/mol. which is the weight of unknown component.
3 0
3 years ago
Other questions:
  • Which of the following is true about chemical equilibrium systems?
    7·1 answer
  • What were the first 16 elements known in 1760
    5·1 answer
  • How to memorize the periodic table
    11·1 answer
  • Calculate the volume in ml of 0.20m naoh needed to react completely with 100.ml of 0.040m acetic acid.
    5·1 answer
  • if waves on the lake have a frequency of 3 hertz and a wavelength of 4 meters,what is the speed of the waves?
    7·1 answer
  • Antimony has 2 naturally occurring isotopes. The mass of antimony-121 is 120.904 amu and the mass of antimony-123 is 122.904 amu
    11·1 answer
  • How many products might be formed on chlorination of o-xylene (o-dimethylbenzene), m-xylene, and p-xylene
    14·1 answer
  • Is radium usually considered as part of the alkaline earth category in terms of chemistry?
    9·1 answer
  • How many iron (II) ions are there in 5.00 g of FeSO4?
    6·1 answer
  • the proposal that matter, like light, has wave properties in addition to particle properties was chegg
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!