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
Trava [24]
2 years ago
10

What is the molar mass of an unknown gas if the density of that gas is 0.726 grams/liter at a pressure of 0.634 atm and a temper

ature of 25oC?
a. 2.35 g/mole
b. 28.0 g/mole
c. 53.2 g/mole
d. 64.0 g/mole
Chemistry
1 answer:
pshichka [43]2 years ago
5 0

Answer:

b. 28.0 g/mole

Explanation:

Given:

d = 0.726 g/L

P = 0.634 atm

T = 25°C + 273 = 298 K

We can use the ideal gas equation of state:

PV= nRT

Since d=mass/V = nM/V, we can modify the equation to obtain the molar mass of the gas (M):

PM = dRT

⇒ M = dRT/P = (0.726 g/L x 0.082 L.atm/K.mol x 298 K)/(0.634 atm)= 27.87 g/mol ≅ 28 g/mol

Therefore, the correct option is b. 28.0 g/mole

You might be interested in
What is a solute?
LUCKY_DIMON [66]

Answer:

The substance that dissolves

Explanation:

Solute is the substance that disappears into a liquid. For example,when salt dissolves in water,the salt is the solute because it is the substance that saluted.

7 0
3 years ago
What is a quantum of light energy called?
kirill115 [55]

Answer:

A) photon

Explanation:

hope it helps and give brainliest if its correct

4 0
2 years ago
Read 2 more answers
________ exercise strengthens skeletal muscle, and ________ exercise strengthens skeletal and cardiac muscle.
valentinak56 [21]

Answer:

<h3>... :-!...................nose...........</h3>
6 0
3 years ago
Answers: A-5N B-6N C-7N D-8N
Misha Larkins [42]

Answer:

<h3>A-5N B-6N C-7N D-8N</h3>

Explanation:

i hope it helps ;)

5 0
3 years ago
Which of the following has the lowest entropy?
Valentin [98]
I believe that the answer is B:  H2O(s) because is the makeup of water also known as one hydrogen and two oxygen. So water as more entropy and the s stands for sol fore i think wich means it contains the most entropy.
5 0
3 years ago
Read 2 more answers
Other questions:
  • What do you predict would happen if you conducted this experiment using sulfur hexafluoride (sf6) which is much heavier than met
    11·1 answer
  • Your dad is working on creating a brick border for the lake in your backyard. Each brick has a mass of 100 g and a volume of 20
    10·1 answer
  • identify a happiness chemical and at least one activity you can do to increase this chemical in your brain.​
    11·2 answers
  • Enter your answer in the provided box. an aqueous solution containing 10 g of an optically pure substance was diluted to 500 ml
    15·1 answer
  • \"Give the nuclear symbol for the isotope of gallium, Ga, that contains 40 neutrons per atom.\". .
    11·1 answer
  • What kind of reaction is photosynthesis?
    14·2 answers
  • Another name for a renewable energy source
    12·1 answer
  • PLA is a bioplastic that is biodegradable. Explain how is is created and why it is biodegradable.
    5·1 answer
  • Which of the following is an example of a connection between the hydrosphere and the
    10·1 answer
  • Under constant pressure a sample of hydrogen gas initially at 88°C and 9.6 L is cooled until its final volume is 3.4 L. What is
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!