A reaction has a theoretical yield of 2.50 g but an actual yield of 1.60 g. What is the percent yield?

Prepare for the NANTeL Chemistry Certification and Engineering Fundamentals Test with multiple choice questions, detailed explanations, and key insights to boost your understanding and confidence. Ace your exam!

Multiple Choice

A reaction has a theoretical yield of 2.50 g but an actual yield of 1.60 g. What is the percent yield?

Explanation:
Percent yield tells you how efficient a reaction is by comparing what was actually obtained to what could have been obtained under perfect conditions. It’s calculated as actual yield divided by theoretical yield, times 100. Here, 1.60 g of product was obtained while the maximum possible is 2.50 g, so the percent yield is (1.60 / 2.50) × 100 = 0.64 × 100 = 64.0%. The 64.0% reflects that some material was lost or not converted. Since both yields have three significant figures, report 64.0%.

Percent yield tells you how efficient a reaction is by comparing what was actually obtained to what could have been obtained under perfect conditions. It’s calculated as actual yield divided by theoretical yield, times 100. Here, 1.60 g of product was obtained while the maximum possible is 2.50 g, so the percent yield is (1.60 / 2.50) × 100 = 0.64 × 100 = 64.0%. The 64.0% reflects that some material was lost or not converted. Since both yields have three significant figures, report 64.0%.

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