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Ch.13 - Solutions
Chapter 13, Problem 55

Silver nitrate solutions are often used to plate silver onto other metals. What is the maximum amount of silver (in grams) that can be plated out of 4.8 L of an AgNO3 solution containing 3.4% Ag by mass? Assume that the density of the solution is 1.01 g/mL.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Concentration and Mass Percent

Mass percent is a way of expressing the concentration of a solute in a solution, calculated as the mass of the solute divided by the total mass of the solution, multiplied by 100. In this case, a 3.4% Ag by mass means that in every 100 grams of the solution, there are 3.4 grams of silver. Understanding this concept is crucial for determining the amount of silver present in the given volume of solution.
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Volume to Mass Conversion

To find the mass of a solution from its volume, the density of the solution is used. Density is defined as mass per unit volume, and in this scenario, the density of the AgNO3 solution is given as 1.01 g/mL. By multiplying the volume of the solution (in mL) by its density, one can calculate the total mass of the solution, which is necessary for further calculations regarding the amount of silver.
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Stoichiometry in Chemical Reactions

Stoichiometry involves the calculation of reactants and products in chemical reactions based on the conservation of mass. In this context, it helps determine how much silver can be plated from the silver nitrate solution. By knowing the mass of silver in the solution, one can apply stoichiometric principles to find the maximum amount of silver that can be deposited onto another metal.
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