Question

An experiment shows that a 118 mL gas sample has a mass of 0.161 g at a pressure of 730 mmHg and a temperature of 32 ∘C.

What is the molar mass of the gas?

Answer 1

35.54g/mole

Step-by-step explanation:

using the formula PV=nRT will allow you to solve for n which is the number of moles. R is a constant and you should use 62.3637 L mmhg/mol K.

In order to make sure your units match you have to convert the 118ml of gas to .118L and temperature needs to be converted to Kelvin. 32C + 273=305K

now you can use the formula to solve for n = number of moles once you get that number you will need to divide that by .161g. Molar mass is g/moles