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Part a potassium cyanide is a toxic substance and the

Part A: 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 145 lb (65.8 kg ) is 9.29×10^-3mol .

What volume of a 0.0520 M KCN solution contains 9.29×10^-3mol of KCN?

Express the volume to three significant figures and include the appropriate units.

Part B: Gastric acid pH can range from 1 to 4, and most of the acid is HCl.

For a sample of stomach acid that is 2.50×10^-2M in HCl, how many moles of HCl are in 19.2 mL of the stomach acid?

Express the amount to three significant figures and include the appropriate unit

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