Sprint 9:27 AM @ 034%.-). | × Makeup Lab 6.docx A+ 1. The chemical formula of bl

Question

Sprint 9:27 AM @ 034%.-). | × Makeup Lab 6.docx A+ 1. The chemical formula of blue copper sulfate is CuSO SHO. Determine the mass percentage of water in blue copper sulfate. 2. You may be able to separate NH,C, NaCl and SiO, from their mixture in a different order that what you actually did in the laboratory. Explain. 3. Suppose you weighed 2.003 g sample of a mixture of NH,CI, NaCI and SiO. Accidently you dropped a small amount of the sample on the floor. Nevertheless, you decided to carryout the experimen weighing the mixture. How would the individual mass percentage of NH,CI, NaCl and SiO, be affected? t without further 4. In this experiment, you separated of NH CI, NaCl and Sio from the mixture of of NH,C1, NaCl and SiO, using sublimation and decantation. Name some other methods chemist use in the laboratory to separate components from

Explanation / Answer

Only one question will be answered at a time as per Chegg policy. You did not specified one question so first question will be answered .

Solution: 1

Molecular weight of

CuSO4.5H2O = 249.68 g/mol

Wt of hydrated water = 5× 18 g/mol = 90 g/mol

Mass percentage of water = (wt. of hydrated water÷ wt. Of CuSO4.5H2O) × 100

= (90÷249.68)× 100

= 36.04%

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