A chemist makes 0.490 L of silverII) oxide (AgO) working solution by adding distilled water to 0.270 L of a 0.0000432 M stock solution of silverII) oxide in water.

Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits.

1 answer

To calculate the concentration of the chemist's working solution, we will use the formula:

M1V1 = M2V2

Where:
M1 = molarity of the stock solution
V1 = volume of the stock solution
M2 = molarity of the working solution
V2 = volume of the working solution

Given:
M1 = 0.0000432 M
V1 = 0.270 L
V2 = 0.490 L

Plugging in the values:

(0.0000432 M)(0.270 L) = M2(0.490 L)

0.000011664 = M2(0.490)

M2 = 0.000011664 / 0.490
M2 = 0.0000238 M

Therefore, the concentration of the chemist's working solution is 0.0000238 M.