2. A mixture of Na₂SO4 and its hydrate Na₂SO4.10H₂O has a mass of 1.5099 g. After heating to drive off all the water, the mass is only 1.1410 g. What is the weight percentage of Na₂SO4.10H₂O in the original mixture? Report your answer to 4 significant figures. Molar masses: Na2SO4 142.04 g/mol; Na₂SO4.10H₂O 322.19 g/mol.

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2. A mixture of Na2SO4 and its hydrate Na2SO4-10H₂O has a mass of 1.5099 g. After heating to drive off
all the water, the mass is only 1.1410 g. What is the weight percentage of Na2SO4.10H₂O in the original
mixture? Report your answer to 4 significant figures.
Molar masses: Na2SO4 142.04 g/mol; Na2SO4.10H₂O 322.19 g/mol.
Transcribed Image Text:2. A mixture of Na2SO4 and its hydrate Na2SO4-10H₂O has a mass of 1.5099 g. After heating to drive off all the water, the mass is only 1.1410 g. What is the weight percentage of Na2SO4.10H₂O in the original mixture? Report your answer to 4 significant figures. Molar masses: Na2SO4 142.04 g/mol; Na2SO4.10H₂O 322.19 g/mol.
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