A student heats of crystalline copper(II) sulfate pentahydrate ( ) to constant mass…
CHEMISTRY · Multi-part · CBSE · Chemistry · Acids, Bases and Salts · Acids, Bases and Salts
Problem
A student heats 3.48g of crystalline copper(II) sulfate pentahydrate (CuSO4⋅5H2O) to constant mass in order to remove the water of crystallization.
Average atomic masses (amu): Cu = 63.55, S = 32.07, O = 16.00, H = 1.008.
Answer the questions that follow.
(a) Determine the molar mass of CuSO4⋅5H2O.
(b) Calculate the number of moles of the hydrated salt present before heating.
(c) How many moles of water are released upon complete dehydration of the 3.48g sample?
(d) Using your results, compute the theoretical mass percent of water in copper(II) sulfate pentahydrate.