How many moles of ammonia are produced by $5$ moles of hydrogen (in $.3$)?

The molarity of a solution made by mixing $50 \ mL$ of conc. $H_2SO_4$ $(36 \ N)$ with $50 \ mL$ of water is ...... $M$.

What volume of ammonia is formed when $10 \ dm^3$ dinitrogen reacts with $30 \ dm^3$ dihydrogen at same temperature and pressure (in $dm^3$)?

The number of moles of hydrogen molecules required to produce $20$ moles of ammonia through Haber's process is

As per the following equation,$0.217 \ g$ of $HgO$ (molecular mass $= 217 \ g \ mol^{-1}$) reacts with excess iodide. On titration of the resulting solution,how many $mL$ of $0.01 \ M$ $HCl$ is required to reach the equivalence point (in $mL$)?
$HgO + 4 I^{-} + H_2O \longrightarrow HgI_4^{2-} + 2 OH^{-}$

$A$ $250 \, mL$ solution of sodium carbonate contains $5.3 \, g$ of $Na_2CO_3$. If $10 \, mL$ of this solution is taken and diluted with distilled water to $0.1 \, L$,what will be the concentration of the resulting solution?