A blue crystalline solid is found to be hydrated copper(II) sulfate, CuSO₄·5H₂O…
CHEMISTRY · Multi-part · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A blue crystalline solid is found to be hydrated copper(II) sulfate, CuSO₄·5H₂O (molar mass = 249.7 g mol⁻¹). A 3.25 g sample is weighed out for an investigation.
(a) Calculate the number of formula units of CuSO₄·5H₂O present in the sample.
(b) Determine the total number of water molecules contained in the sample.
(c) Calculate the total number of hydrogen atoms contributed by the water of hydration in the sample.