The production of 10 moles of ammonia by the Haber process requires how many moles of hydrogen gas, assuming complete reaction?

Which of the following has the largest number of atoms?

If 1 mole of a substance contains $6.022 imes 10^{23}$ particles, how many particles are present in 0.5 moles?

A mixture of ${\rm{2}}{\rm{.3}}\,\,{\rm{g}}$ formic acid and ${\rm{4}}{\rm{.5}}\,\,{\rm{g}}$ oxalic acid is treated with conc. ${{\rm{H}}_{{\rm{2}}\,}}{\rm{S}}{{\rm{o}}_{\rm{4}}}$ . The evolved gaseous mixture is passed through ${\rm{KOH}}$ pellets weight (in g) of the remaining product at STP will be

A compound contains 28% nitrogen and 72% of a metal by weight. Three atoms of metal combine with two atoms of nitrogen. If the atomic weight of nitrogen is 14, the atomic weight of the metal is:

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

How many moles of hydrogen gas are needed to react with nitrogen gas to produce 20 moles of ammonia according to the Haber-Bosch process?

In which case the number of molecules of water maximum

Suppose the elements X and Y combine to form two compounds $X{Y_2}$ and ${X_3}{Y_2}$. When 0.1 mole of $X{Y_2}$ weights 10 g and 0.05 mole of ${X_3}{Y_2}$ weights 9 g, the atomic weights of X and Y are

If you have 18g of water and 18g of oxygen, which contains a greater number of molecules?

Which has more molecules: 1 mole of glucose or 18 grams of water?