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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Q: Alkynes -C=C- Ketones/ aldehydes 요 Alcohols OH -- Alkenes Alkyl halides 하우 Br Alkanes -C-C-

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Q: 6. HNO3/H2SO4 Nitration

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".