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
AfilCa [17]
3 years ago
11

Calculate the number of moles of a gas that is present in a 7.55 L container at 45°C, if the gas exerts a pressure of 725mm Hg.

Enter your answer in the box provided. mol
Chemistry
1 answer:
vovikov84 [41]3 years ago
4 0

<u>Answer:</u> The number of moles of gas present is 0.276 moles

<u>Explanation:</u>

To calculate the number of moles of gas, we use the equation given by ideal gas:

PV = nRT

where,

P = Pressure of the gas = 725 mm Hg

V = Volume of the gas = 7.55 L

n = number of moles of gas = ?

R = Gas constant = 62.3637\text{ L.mmHg }mol^{-1}K^{-1}

T = Temperature of the gas = 45^oC=(45+273)K=318K

Putting values in above equation, we get:

725mmHg\times 7.55L=n\times 62.3637\text{ L.mmHg }mol^{-1}K^{-1}\times 318K\\\\n=0.276mol

Hence, the number of moles of gas present is 0.276 moles

You might be interested in
Name gaseous element in period 2 group 16?
Sholpan [36]

Answer:

mark me as a brainlist answer

Explanation:

Oxygen

3 0
3 years ago
BRAINLIEST ANSWER! PLEASE HELP!! An Earth-like planet is 500 light years away. Why is this an obstacle for a manned space missio
Setler79 [48]
I Would think it would be C Since Humans can't live 500 years but then yet again it is light years not regular years i think if you find how man years is 500 light years the that could help you in finding the answer 
7 0
3 years ago
Plz help me fast!!!!!!!!!!!
Arisa [49]
A) scientific theory

4 0
3 years ago
This question is about metal oxides. When sodium is heated in oxygen, sodium oxide is produced.
vodomira [7]

Answer:

This is very easy Cuz We have 2Na2O We have O2 so thats molecule of Oxygen and its same on product We need to balance Na on start We have 1 on product We have 2 so Just put 2 at start....

Explanation:

Sorry for bad english not my first language :(

2Na+O2-->2Na20

5 0
3 years ago
the bonding of two amino acids to form a larger molecule requires the addition of nitrogen the release of carbon dioxide the rel
Ksivusya [100]
What is the question here?

3 0
3 years ago
Other questions:
  • Which equation represents a neutralization reaction?
    15·1 answer
  • You are on an island and need freshwater to drink. Which process could you
    11·1 answer
  • Sedimentation increases with an increase in land used for agriculture.
    9·1 answer
  • Identify six elements common to organic compounds.
    6·1 answer
  • Mixing two clear liquids results in the formation of a whit solid. Is this a physical or chemical change?
    15·1 answer
  • What are all of the living and nonliving things in an area called?
    10·2 answers
  • An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. Which is the
    9·2 answers
  • What is the formula for potassium nitrate? (3 points) a KN b K3N c KNO2 d KNO3
    14·1 answer
  • Whats the formula for mass
    12·1 answer
  • Compare and contrast the Ionization energies of groups 1&amp;2 (Alkali and Alkaline metals) with the Ionization energies of grou
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!