The vapour density of a gas is $11.2$. The volume occupied by $11.2 \ g$ of this gas at $N.T.P.$ is ................ $L$

How many $mL$ of $0.1\, M\, HCl$ are required to react completely with $1\, g$ mixture of $Na_2CO_3$ and $NaHCO_3$ containing equimolar amounts of both?

How many $g$ of bromine will react with $21\, g$ of $C_3H_6$?

Calculate the number of $Cl^{-}$ ions in $222 \ g$ anhydrous calcium chloride? (At. mass $Ca=40, Cl=35.5$)

One litre of a gas at $STP$ weighs $1.16 \ g$. It can possibly be:

Molarity of a solution containing $1 \ g$ $NaOH$ in $250 \ mL$ of solution is ...... $M$.