Question

What is the molar mass of a gas if 0.281 g of the gas occupies a volume of 125 mL at a temperature 26 °C and a pressure of 677 torr?

Answer 1

we will use universal gas law

Step-by-step explanation:

First, convert torr to atm

`(677)/(760) = 0.89`

`PV = (mass)/(molar mass) R T`

`0.125 * 0.89 = (0.281)/(molar mass) * 0.082 * (26 +273)`

Molar mass = 61.9

Note: I converted Celsius to kelvin and mL to L