Question

For the following reaction, 6.00 grams of calcium hydroxide are mixed with excess hydrochloric acid. The reaction yields 7.64 grams of calcium chloride.

calcium hydroxide (aq) + hydrochloric acid (aq) calcium chloride (aq) + water (1)

What is the theoretical yield of calcium chloride? 9 grams

What is the percent yield of calcium chloride? 84.8 %​

Answer 1

8.986 g and 85%

Explanation:

Theoretical Yield:

$6.00 \: g \: Ca(OH₂) \times \frac{1 \: mol \: Ca(OH₂)}{74.10g \: Ca(OH₂)} \times \frac{1 \: mol \: CaCl₂}{1 \: mol \: Ca(OH₂)} \times \frac{111.0 \: g \: CaCl₂}{1 \: mol \:CaCl₂ } = 8.986 \: g \: CaCl₂$

Percent Yield:

$\frac{7.64 \: g}{8.986 \: g} \times 100 = 85.0\%$