Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person or animal that ingests it. The median lethal dose of KCN for a person weighing 135 lb (61.2 kg) is 5.7410-3 mol. What volume of a 0.0640 M KCN solution contains 5.7410-3 mol of KCN? Express the volume to three significant figures and include the appropriate units.

Question

Chemistry

Hope Valdez

20 December, 20:30

Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person or animal that ingests it. The median lethal dose of KCN for a person weighing 135 lb (61.2 kg) is 5.7410-3 mol. What volume of a 0.0640 M KCN solution contains 5.7410-3 mol of KCN? Express the volume to three significant figures and include the appropriate units.

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Answers (1)

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Averie Robertson · Answer 1

The volume will be 89.6875 ml

Explanation:

So to count this we will use a single proportion.

0.0640 mol - 1000 ml

5.74*10-3 mol - x ml

x ml=5.74*10-3 mol*1000 ml/0.0640 mol=89.6875 ml