When 1.570 grams of the compound is vaporizedar 300 degrees celius and 1 atmosphere, the gas occupies a volume of 577 milliliters. what is the molar mass of the compound based on the result?

128 g/mol

Explanation:

The molar mass is how much a mol of the substance weight.

In this question the weight is given (1.570 g).

To find the number of moles in the sample, we use the ideal gas law: PV=RnT

P= 1atm

V= 577mL= 0.577L

R (universal gas constant)= 0.08206()

n= number of moles

T= 300°C= 573.15K

Solving for n:

n= k

n=0.0123mol

Molar mass=

Molar mass=128

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