Question

In the following formula, $MgS{O}_4\cdot n{H}_{2}O$, what does the $n$ before the $H_{2}O$ stand for:

• A. the number of moles of water.
• B. the number of moles of hydrogen.
• C. the mole ratio.
• D. the number of moles of hydrate.
• E. the number of moles of anhydrate.

Answer 1

The correct option is A the number of moles of water.

Here, n represents the number of moles of water of crystallisation present in hydrated magnesium sulphate.