A student was given the hydrate of potassium sulfide (K₂S).

Last updated: 7/31/2022

A student was given the hydrate of potassium sulfide (K₂S). Following the procedure of the experiment the following data were recorded: Mass of sample before heating, g Mass of sample after heating, g Calculate the mass of the water lost during the heating. Calculate the moles of water lost during heating. Its Molecular Weight is 18.00 g/mol. Calculate the moles of anhydrous salt present. The formula weight of K₂S is 110.27 g/mol. Calculate the number of moles of water per mole of anhydrous salt in the hydrate. Write the formula of the hydrated salt: