Performing calculations with values and their respective units is specifically r

Question

Performing calculations with values and their respective units is specifically referred to as dimensional analysis Multiplying a molarity of 0.3 M by either 3 mol KI or 3 L could result in four possible values: The values with units of mol^2/L or L^2/mol are not useful, as you need values in either moles or liters 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 175 lb (79.4 kg) is 8.29 times 10^3 mol. What volume of a 0.470 M KCN solution contains 8.29 times 10^-3 mol of KCN? Express the volume to three significant figures and include the appropriate units.

Explanation / Answer

Part A :

molarity = moles/L

Volume of solution with the required KCN = 8.29 x 10^-3 mol/0.0470 M = 0.176 L

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