Question

An aqueous solution was made by dissolving 0.543 grams of an unknown, monoprotic acid into 25 ml of water in an erlenmeyer flask. After an active reaction, the final volume of the solution was 50 ml. What is the concentration of the acid in the solution?

Answer 1

To find the concentration of the acid in the solution, divide the moles of the acid by the volume of the solution.

Step-by-step explanation:

To find the concentration of the acid in the solution, we need to calculate the number of moles of the acid and then divide it by the volume of the solution. The given mass of the acid is 0.543 grams, which we can convert to moles by dividing by the molar mass of the acid. Assuming the acid is monoprotic, the number of moles is the same as the concentration. The volume of the solution is 50 ml. So, the concentration of the acid is:

Concentration = Moles of acid / Volume of solution

First, calculate the moles of acid:

Moles of acid = mass of acid / molar mass of acid

Next, divide the moles of acid by the volume of the solution:

Concentration = Moles of acid / Volume of solution