Question

A hydrate of CoCl2 with a mass of 6.00 g is heated strongly. after cooling the mass the anhydrate is 3.27g

Answer 1

We are given with a hydrate with a mass of 6 grams and after heating the mass and cooling afterward, the mass went down to 3.27 grams. The amount of water in the hydrate thus is 6-3.27 g or 2.73 grams.That is equivalent to 45.5 percent by mass water.

Answer 2

Answer : The amount of water lost from the hydrate is 2.73 grams.

Explanation :

Let us assume that we are calculating the amount of water lost from the hydrate.

As we are given:

Mass of hydrate of $CoCl_2$ = 6.00 g

Mass of anhydrate = 3.27 g

Mass of water lost = Mass of hydrate of $CoCl_2$ - Mass of anhydrate

Mass of water lost = 6.00g - 3.27g

Mass of water lost = 2.73 g

Hence, the amount of water lost from the hydrate is 2.73 grams.