MEDIUM
9th CBSE
IMPORTANT
Earn 100

What is the mass of 10 moles of sodium sulphite (Na2SO3)? 

Important Questions on Atoms and Molecules

MEDIUM
9th CBSE
IMPORTANT
A sample of ammonia (NH3) weighs 2.00 g. Calculate the mass of sulphur dioxide (SO2) that contains the same number of molecules as are in 2.00 g of ammonia.
MEDIUM
9th CBSE
IMPORTANT
The relative atomic masses of Li and N are 7.0 and 14.0 respectively. Calculate the ratio of the masses of Li and N in lithium nitride.        
EASY
9th CBSE
IMPORTANT

Calculate the molecular mass of N2.

EASY
9th CBSE
IMPORTANT

Calculate the molecular mass of F2.

EASY
9th CBSE
IMPORTANT

Calculate the molecular mass of CO.

EASY
9th CBSE
IMPORTANT

Calculate the molecular mass of NH4OH.

EASY
9th CBSE
IMPORTANT

Calculate the molecular mass of H2SO4 .     

EASY
9th CBSE
IMPORTANT

Calculate the molecular mass of C2H5OH.