Converting Grams to Grams

What is the given quantity and what needs to be found in the stoichiometry problem presented?

• Given: 47.2 g Ca(OH)₂, Find: g H₃PO₄

• Given: 47.2 g H₃PO₄, Find: g Ca(OH)₂

• Given: 2 mol H₃PO₄, Find: 3 mol Ca(OH)₂

• Given: 47.2 g H₂O, Find: g Ca₃(PO₄)₂

What is the first conversion step in the plan to solve this stoichiometry problem?

• Convert grams of H₃PO₄ to moles of Ca(OH)₂

• Convert moles of H₃PO₄ to moles of Ca(OH)₂

• Convert grams of H₃PO₄ to moles of H₃PO₄

• Convert moles of Ca(OH)₂ to grams of Ca(OH)₂

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What is the molar mass of H₃PO₄?

• 98 g/mol

• 30.97 g/mol

• 64 g/mol

• 16 g/mol

What is the mole ratio of Ca(OH)₂ to H₃PO₄ from the balanced chemical equation?

• 2 mol Ca(OH)₂ / 3 mol H₃PO₄

• 3 mol Ca(OH)₂ / 2 mol H₃PO₄

• 1 mol Ca(OH)₂ / 1 mol H₃PO₄

• 6 mol H₂O / 2 mol H₃PO₄