The volume occupied by $4.4 \ g$ of $CO_2$ at $STP$ is ............... $L$.

How many grams of $HCl$ are required to prepare $1500 \, mL$ of $0.1 \, N \, HCl$ aqueous solution?

What will be the volume of $O_2$ gas at $STP$ which is obtained by thermal decomposition of $30.62 \ g$ $KClO_3$,with $80\%$ purity?

What is the normality of a $1 \, M$ solution of $H_3PO_4$?

$100 \, mL$ of $0.1 \, N \, HCl$ is neutralized by $0.2 \, N \, NaOH$ solution. After adding $30 \, mL$ of $NaOH$ solution,the neutralization is continued using $0.25 \, N \, KOH$. Calculate the volume of $KOH$ in $mL$ required to complete the neutralization.

How many moles of $H_2O_2$ are required for the decolorization of $1$ mole of $KMnO_4$?