AgNO3 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 3.8 L of an AgNO3 solution containing 3.2% Ag by mass?
(Assume that the density of the solution is 1.02 g/mL.)
2.22
To find the maximum amount of silver that can be plated out, we need to calculate the mass of silver in the AgNO3 solution.
First, we need to find the mass of the AgNO3 solution. To do this, we can use the density and volume of the solution:
Mass of AgNO3 solution = Density × Volume
= 1.02 g/mL × 3.8 L
= 1.02 × 10^3 g/L × 3.8 L
= 3.876 g
Next, we need to find the mass of silver in the solution. We are given that the AgNO3 solution contains 3.2% Ag by mass. This means that there are 3.2 grams of Ag for every 100 grams of AgNO3 solution.
Mass of Ag = 3.2% Ag × Mass of AgNO3 solution
= (3.2/100) × 3.876 g
= 0.1238 g
Therefore, the maximum amount of silver that can be plated out of 3.8 L of the AgNO3 solution is approximately 0.1238 grams.