Question

An aqueous solution of lead nitrate, , is made by dissolving 14.8 grams of lead nitrate in sufficient water in a 300. ml volumetric flask, and then adding enough water to fill the flask to the mark. What is the weight/volume percentage of lead nitrate in the solution?

Answer 1

The weight/volume percentage of lead nitrate in the solution is 4.93%.

Step-by-step explanation:

To calculate the weight/volume percentage of lead nitrate (Pb(NO3)2) in an aqueous solution, you use the following formula:

% m/v = (mass of solute in grams / volume of solution in milliliters) x 100%

In this case, you have 14.8 grams of lead nitrate dissolved in 300 mL of solution. Applying the formula:

% m/v = (14.8 g / 300 mL) x 100% = 4.93% m/v

So, the weight/volume percentage of lead nitrate in the solution is 4.93%.