Question

stock solution of copper(II) A chemist makes 630. mL of copper(II) fluoride (CuF) working solution by adding distilled water to 120. mL of a 3.17 T fluoride in water Calculate the concentration of the chemist's working solution. Be sure your answer has the correct number of significant digits. x s ?

Answer 1

use dilution formula

M1*V1 = M2*V2

1---> is for stock solution

2---> is for diluted solution

Given:

M1 = 3.17 mmol/L

V1 = 120 mL

V2 = 630 mL

use:

M1*V1 = M2*V2

M2 = (M1*V1)/V2

M2 = (3.17*120)/630

M2 = 0.604 mmol/L

Answer: 0.604 mmol/L