Answer to Question #248262 in General Chemistry for Bob

Question #248262

A flask with a volume of 4.25 L contains 12.0 grams of an unknown gas at 25.0 C and 1.00 atm. What is the molar mass of the gas. R = 0.0821

Expert's answer

PV=nRT

1×4.25= n×0.0821×298

= 4.25= n×24.47

4.25= 24.47n

n= 0.174

Molar mass = 12/0.174

= 68.97g/mol

Learn more about our help with Assignments: Chemistry

No comments. Be the first!

Who Can Help Me with My Assignment

There are three certainties in this world: Death, Taxes and Homework Assignments. No matter where you study, and no matter…
How to Finish Assignments When You Can’t

Crunch time is coming, deadlines need to be met, essays need to be submitted, and tests should be studied for.…
How to Effectively Study for a Math Test

Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…