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
Pavel [41]
3 years ago
14

The density of an unknown gas is found to be 3.44 g/l at standard temperature and pressure (stp). what is the molar mass of this

gas? 32 g/mol 48 g/mol 64 g/mol 77 g/mol
Chemistry
1 answer:
Schach [20]3 years ago
6 0

To calculate the molar mass of a gas, without knowing density, we would alter the equation:

PV = (mass / molar mass)(RT)

we know density and the units are mass / volume

altering the equation to accommodate density


PV= mass x RT x molar mass.....taking note that mass / volume = density, g/L

P = dRT / molar mass

solving for molar mass:

molar mass = dRT/P

3.44g/L x 0.0821L-atm/mole-K x 273K / 1atm = molar mass = 77.1g/mole

You might be interested in
4. Write a chemical formula for a compound that has two atoms of oxygen (0) and
Katyanochek1 [597]
The answer is Fe3O2 because there’s 2 oxygen and 3 iron
5 0
3 years ago
To determine the specific heat capacity of copper, Alyssa performed an investigation by which she dropped a heated piece of copp
user100 [1]

Answer:

0.446

Explanation:

ccu =  3035.655 / 104 g x (98.9 - 33.5)  = 0.446 J / g 0 C

6 0
2 years ago
What happens to raisins or other dried fruits in breakfast cereals when you pour milk over them? why?
viktelen [127]
<span>Dried fruits and raisins get terribly soggy after being drenched in milk for a long period of time. They act like a sponge, absorbing all of the milk up making them wet and "soggy". I prefer them to be like that when I eat my cereal in the morning.</span>
8 0
3 years ago
Lina has worked hard to gather data for her experiments. With her last set of data she received, she is ready to publish her pap
nika2105 [10]

43.8 has 3 significant figures and 1 decimal.

<h3 /><h3>What are significant figures?</h3>

The term significant figures refer to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation.

All zeros that occur between any two non-zero digits are significant. For example, 108.0097 contains seven significant digits. All zeros that are on the right of a decimal point and also to the left of a non-zero digit are never significant. For example, 0.00798 contained three significant digits.

Hence, 43.8 has 3 significant figures and 1 decimal.

Learn more about significant figures here:

brainly.com/question/14359464

#SPJ1

8 0
2 years ago
How many grams are of sodium chlorate are present in a 2.45 mole sample?
DedPeter [7]

Answer:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles NaCl, or 58.44277 grams.

Explanation:

I hope this helps!!

4 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following statements is false?
    6·1 answer
  • How many moles are in 18g of sugar(C6H12O6)
    13·1 answer
  • The biopsychosocial perspective, compared with the perspectives of Freud, Jung, and Rogers, __________.
    6·1 answer
  • A ____________ are large molecules made up of repeating units, referred to as monomers.
    11·2 answers
  • Sugar dissolves when stirred into coffee. The coffee is the ________, the sugar is the ________, and the sweetened coffee is the
    10·1 answer
  • How many atoms are in 3.50 moles of calcium (Ca)?
    6·2 answers
  • 35. 124.31 g of silver nitrate reacts with 52.89 g of sodium chloride.
    14·1 answer
  • A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.50kg of water at 24.2°C. Dur
    7·1 answer
  • What are 5 examples of monosaccharides? What is also known as monosaccharide?​
    13·1 answer
  • What is the percent oxygen in something made of 2 mole of copper and 1 mole of oxygen called copper (l) oxide?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!