Question

A 14.5 gram sample of gas is found to have a volume of 1.1 liters at 275 K and 1.3 atm. What is the molar mass of this gas? Show all of the work used to solve this problem.

Answer 1

PV= nRT
You have P, V, R and T given for you

P= 1.3 atm
V= 1.1 L
R= constant value = 0.08206
T= 275 K
n= X mole

find n using the formula written above

now you have mole and you are given mass
thus you can use formula

mole= mass/ Molar mass

Molar mass= mass/mole

substitute the values into the formula and get the molar mass

Hope it helps :)

Answer 2

Thank you (:

Answer 3

you are welcome :))