How many grams of $NaOH$ are equivalent to $100 \, mL$ of $0.1 \, N$ oxalic acid?

The formula of a metallic oxide is $MO$. What will be the formula of its phosphate?

$0.16 \ g$ of a dibasic acid required $25 \ mL$ of decinormal $NaOH$ solution for complete neutralization. The molecular weight of the acid is

The volume of $0.1 \, N$ dibasic acid sufficient to neutralize $1 \, g$ of a base that furnishes $0.04 \, mole$ of $OH^{-}$ in aqueous solution is ............ $mL$

$2 \ N - HCl$ will have the same molar concentration as $....... \ N - H_2SO_4$

$20 \, mL$ of a $1 \, N$ solution of $KMnO_4$ just reacts with $20 \, mL$ of a solution of oxalic acid. The weight of oxalic acid crystals in $1 \, L$ of the solution is $... \, g$