Question

The density of of Hydrogen at STP is 0.09g/l .the number of Hygrogen molecules in small bubble of gas whose volume at STP is 0.03ml

Answer 1

Answer:

Explanation:

Density= 0.09=mass of gas/volume

=>0.09=m/0.00003

m=(0.09)(0.00003)= 27 X 10^-7

no of molecules of gas is given by (given mass/molar mass)6.022(10^23)

81.3 x 10^16 no of molecules