If Avogadro number, $N_A$, is changed from $6.022 imes 10^{23} \, mol^{-1}$ to $6.022 imes 10^{20} \, mol^{-1}$, this would change:

0.3 g of an oxalate salt was dissolved in 100 mL solution. The solution required 90 mL of $N/20$ ${\rm{KMn}}{{\rm{O}}_4}$ for complete oxidation. The % of oxalate ion in salt is:

1 mol of $C{H_4}$ contains

Two elements, R and S, combine to form $RS_2$ and $R_2S_3$. If 10 g of $RS_2$ contains 0.1 mole and 9 g of $R_2S_3$ contains 0.05 mole, find the atomic weights of R and S.

Calculate the mass (in g) of the gaseous product remaining at STP when a mixture of $9.2$ g formic acid and $18$ g oxalic acid is treated with conc. $H_2SO_4$ and then passed through $KOH$ pellets.

0.3 g of an oxalate salt was dissolved in 100 mL solution. The solution required 90 mL of $N/20$ ${\rm{KMn}}{{\rm{O}}_4}$ for complete oxidation. The % of oxalate ion in salt is:

Which of the following contains the maximum number of water molecules?

0.5 moles of water contains how many molecules?

The relation between molecular weight $\left( M \right)$ and vapour density $\left( VD \right)$ is:

If 10 moles of ammonia are produced via the Haber-Bosch process, how many moles of hydrogen gas were consumed?

The mass of 2.5 g.atom of oxygen is