if 0.896 grams of a gas occupies a 250 ml flask at 20 degrees celcius and 760 mm hg of pressure,what is the molar mass of the gas?

Answer 1

First, note the correct spelling of celsius.
UsePV = nRT and solve for n = number of mols, then n = grams/molar mass. You have g and n, solve for molar mass.

Answer 2

g= 45

Answer 3

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Answer 4

Pv=nRT PV/RT=n. 1l=100ml x=250ml. 100x=250/100 ×=750//76 =10=1atm ×0.25l/0.082×293.15 =0.010400069. Answer=0.0104g