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Chemical synthesis — Question 16

QCAA 2021, Paper 1 · 1 mark

Q16 · 2021 · Paper 1Unclassified1 mark

QUESTION 16

Calculate the percentage yield of magnesium ethanoate when 8.0 moles of ethanoic acid reacts with 6.0 moles of magnesium carbonate, producing 3.5 moles of magnesium ethanoate as shown in the equation.

2CH3COOH(aq) + MgCO3(s) → (CH3COO)2Mg(aq) + CO2(g) + H2O(l)

(A) 44%

(B) 58%

(C) 88%

(D) 100%

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