Question

1. moles of salt (anhydrate)

(show calculations.)

1. ratio of moles of water to moles of hydrate

(show calculations.)

1. formula of hydrate

questions and problems
q5 using the formula you obtained in b11, write a balanced equation for the dehy-
dration of the mgso, hydrate used in the experiment.

Explanation:

Step1: Identify the hydrate formula

From the problem, the formula of the hydrate is \(MgSO_{4}\cdot7H_{2}O\).

Step2: Write the dehydration reaction

When a hydrate undergoes dehydration, the water of crystallization is removed. The general form for the dehydration of a hydrate \(A\cdot nH_{2}O\) is \(A\cdot nH_{2}O
ightarrow A + nH_{2}O\).
Substituting \(A = MgSO_{4}\) and \(n = 7\) into the equation:

$$MgSO_{4}\cdot7H_{2}O ightarrow MgSO_{4}+7H_{2}O$$

Answer:

$$MgSO_{4}\cdot7H_{2}O ightarrow MgSO_{4}+7H_{2}O$$