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7.47g of blue copper(II)tetraoxosulphate(VI) crystals, CuSO4.5H20 were heated in a crucible to a constant mass,...

7.47g of blue copper(II)tetraoxosulphate(VI) crystals, CuSO4.5H20 were heated in a crucible to a constant mass, first at a temperature of 110°c, and then at 130°c. The residue that was obtained at 110°c weighed 5.31g and that obtained at 130°c weighed 4.77g. Calculate the stages of dehydration reached at 110°c and 130°c respectively.?
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Asked by Cordeltam on 16th May, 2020
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts