The mass of a crucible and a hydrated salt was to be 21.477g. The mass of the crucible and the anhydrous salt was 20.070g. The mass of the crucible was 17.985 g.
a) Calculate the mass of the hydrated heated
b) Calculate the mass of h2o lost from the hydrate during heating
c) Calculate the percent water in the hydrate
a) mass hydrated salt = mass crucible and hydrated salt - mass crucible
= 21.477 - 17.985
The solution provides a clear method of finding the required masses using pre-established formulas presented neatly.