Percentage yield calculation

Steps:

• Calculate molar mass of MgSO4 (120 g/mol) and Mg(OH)2 (58 g/mol).
• Moles of MgSO4 = 1.20 g / 120 g/mol = 0.01 mol (limiting reactant, 1:1 stoichiometry with Mg(OH)2).
• Theoretical yield of Mg(OH)2 = 0.01 mol × 58 g/mol = 0.58 g.
• Actual yield (0.92 g) exceeds theoretical yield, making percentage yield >100% impossible.

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Final answer: Not enough information.