Dilution: Mc X Vc = Md X Vd

Question

In the laboratory, a student dilutes 25.3 mL of a 10.3 M hydrobromic acid solution to a total volume of 150.0 mL. What is the concentration of the diluted solution?

Concentration =  M

Answer 1

C1V1 = C2V2

You have C1 = 10.3 M

You have V1 = 25.3 mL

You have V2 = 150 mL

Just plug in and solve!

10.3M * 25.3mL = C2 * 150 mL

260.59= C2 * 150 mL

260.59/150= C2

1.73M = C2