IIT/JEE Chemistry Practice #2: Molar Mass/Stoichiometry

Dave explains two practice problems involving molar mass and stoichiometry. The first problem requires converting molecules of copper sulfate pentahydrate to moles using Avogadro's number and then calculating the mass. The second problem involves determining how many grams of oxygen will react with aluminum by forming and balancing a chemical equation, then using stoichiometric ratios to find the answer.

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