A reaction has theoretical yield 2.75 g CO2; actual yield is 2.20 g. What is the percent yield?

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Multiple Choice

A reaction has theoretical yield 2.75 g CO2; actual yield is 2.20 g. What is the percent yield?

Explanation:
Percent yield tells you how much product you actually got compared to what you could theoretically get, expressed as a percentage. It’s calculated as actual yield divided by theoretical yield, times 100%. Here, the actual yield is 2.20 g of CO2 and the theoretical yield is 2.75 g. So 2.20 ÷ 2.75 = 0.80, and 0.80 × 100% = 80.0%. The reaction produced 80.0% of the theoretical amount. If you check the other options, 60% would correspond to 1.65 g, 70% to 1.93 g, and 90% to 2.48 g. The observed 2.20 g matches 80.0%.

Percent yield tells you how much product you actually got compared to what you could theoretically get, expressed as a percentage. It’s calculated as actual yield divided by theoretical yield, times 100%.

Here, the actual yield is 2.20 g of CO2 and the theoretical yield is 2.75 g. So 2.20 ÷ 2.75 = 0.80, and 0.80 × 100% = 80.0%. The reaction produced 80.0% of the theoretical amount.

If you check the other options, 60% would correspond to 1.65 g, 70% to 1.93 g, and 90% to 2.48 g. The observed 2.20 g matches 80.0%.

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