If the density of iron is $7.86 \, g \, cm^{-3}$ and its atomic mass is $55.85 \, u$,then find the volume occupied by $1 \, mol$ of iron atoms in $cm^{3}$.

How many grams of a dibasic acid (molar mass = $200 \ g/mol$) are present in $100 \ mL$ of its $0.1 \ N$ aqueous solution (in $g$)?

What is the volume (in litres) of oxygen required at $STP$ to completely convert $1.5 \ mol$ of sulphur into sulphur dioxide?

While combusting in air,$4 \ g$ of $H_2$ gas was completely converted into water. If $36 \ \mu mole$ of $CO_2$ from air is dissolved into that water,what is the concentration of $CO_2$?

Calculate the amount of water $(g)$ produced by the combustion of $16 \ g$ of methane. (in $g$)

$A$ $300 \ mL$ bottle of soft drink has $0.2 \ M$ $CO_2$ dissolved in it. Assuming $CO_2$ behaves as an ideal gas,the volume of the dissolved $CO_2$ at $STP$ is $...... \ mL$. (Nearest integer) Given: At $STP$,molar volume of an ideal gas is $22.7 \ L \ mol^{-1}$.