Question

URGENT PLESE AND THANK YOU

An ideal gas sample weighing .546 g at 100 degrees Celsius and .993 atm has a volume of .237 L. Determine the molar mass of the gas.
A. 71.3 g/mol
B. 143 g/mol
C. 19.1 g/mol
D. .0140 g/mol

Answer 1

Answer:A. 71.3 g/mol

Step-by-step explanation:

To solve this problem, we apply the ideal gas equation, PV=nRT where

P= pressure of the gas

V= volume of the gas

R= universal gas constant

T= temperature of the gas.

But the number of moles is given by mass/ molar mass

The application of this to obtain the molar mass is shown in the image attached.