Question

I’ve just made 1.50 L of a 0.65 M solution, using 2.3 mL of stock. What was the concentration of the stock?

Answer 1

To find the concentration of the stock solution, we can use the formula:

Concentration of stock solution = (mass of stock solution / volume of solution) x 1000

We know that the volume of the solution is 1.50 L, and we're given that the mass of the stock solution is 2.3 mL. So, we can plug these values into the formula like this:

Concentration of stock solution = (2.3 mL / 1.50 L) x 1000

Simplifying and calculating, we get:

Concentration of stock solution = 1.53 M

Therefore, the concentration of the stock solution is 1.53 M.

Answer: 1.53 M

Step-by-step explanation: