Question

Two 50cm3 cylinder 1 and 2 contain hydrogen and oxygen respectively at the same temperature and pressure of there are 3.0 moles of oxygen, then the mass of hydrogen is ?

Answer 1

6 GRAM OF HYDROGEN .

Explanation:

LET 1` be hydrogen and 2 be oxygen ,

PV = NRT  

P1V1 = N1RT1

P2V2 = N2RT2

P,V T ARE SAME

MEANS

N1=N2

N1 = 3

N2 = 3

N2 = MASS/ MOLAR MASS

MOLAR MASS OF H2 =  2

MASS = 3 * 2

         = 6 GRAM.

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