" The mass of "1.205times10^(22)" molecules of ammonia is "

The mass of 1.205 xx 10^(22) molecules of ammonia is

Mass of one molecule of ammonia is

The mass of 1.5 xx 10^(20) molecules of a substance is 20 mg . The molar mass of substance is

The mass of 1.5 xx 10^(26 molecules of a substances is 16 kg . The molecular mass of the substance is

Find the mass of 7 xx 10^(20) molecules of H_2 gas.

What is the weight of 3.01xx10^(23) molecules of ammonia?

If the mass of 10^22 molecules of a hydrocarbon is about 1.2 g, then the gram molecular mass of hydrocarbon is :

If the mass of 10^22 molecules of a hydrocarbon is about 1.2 g, then the gram molecular mass of hydrocarbon is :