Relative Molecular Mass

Substances having an equivalent number of molecules as in $9 \mathrm{g}$ of water:

What is the molar mass of Nitric acid? $[\mathrm{H}=1 \mathrm{u}, \mathrm{N}=14 \mathrm{u}, \mathrm{O}=16 \mathrm{u}]$

Chlorofluorocarbons (or CFCs) are chemicals that destroy the ozone in the atmosphere. A common CFC has a chemical formula ${\mathrm{CCl}}_2{\mathrm{F}}_2$. Using the table below, what is the relative formula mass of ${\mathrm{CCl}}_2{\mathrm{F}}_2$?

Ribose has the formula ${\mathrm{C}}_5{\mathrm{H}}_{10}{\mathrm{O}}_5.$ What is the mass of a sample containing $1.25 \times {10}^{24}$ carbon atoms:-

How many grams of $\mathrm{O}$ is presnet in $50\mathrm{g}$ of ${\mathrm{CaCO}}_3$? 

Calculate the formula unit masses of $ZnO$ .

Calculate the formula unit masses of ${\mathrm{K}}_2\mathrm{C}{\mathrm{O}}_3$ .

Calculate the molecular mass of $\mathrm{C}{\mathrm{H}}_3\mathrm{O}\mathrm{H}$ .

Calculate the molecular mass of HNO₃.

The mass of 2.5 gram atoms of calcium is _______.

Amount of $BaS{O}_4$ formed on mixing the aqueous solutions of 2.08 gm $BaC{l}_2$ and excess of dil. $H_{2}S{O}_4$ is [atomic weights : Ba = 137, Cl = 35.5, S = 32, O = 16].

Number of atoms of sulphur present in 80.25 g of sulphur is- (At. wt. of S = 32)