Question

0.0572 g of a gas has a volume of 50 cm3 at 760mmHg presure of 25degree celsius what is molecular mass

Answer 1

Answer:

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Answer 2

Explanation:

m=0.0572g V=50cm^3

=50 x 10^(-3)L

P=760mmHg

=1 atm because 1 atm =760mm Hg

therefore 760/760=1atm

T=25+273=298K R=0.08314

According to the ideal gas equation

PV=nRT

where n=m/M

M=mRT/PV

Substitute the values

M=0.0572 x 0.08314 x 298 / 1 x50

M=0.0283 x 10^(-3)

M=28.34//

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