Question

If I have 340mL of a 0.5M NaBr solution, what will the concentration be if I add enough water to make 1000mL of the solution?​

Answer 1

o solve this problem, you can use the equation:

M1V1 = M2V2

where M1 is the initial concentration, V1 is the initial volume, M2 is the final concentration, and V2 is the final volume.

In this case, you have 340 mL of a 0.5 M NaBr solution, and you want to dilute it to a total volume of 1000 mL. So:

M1 = 0.5 M

V1 = 340 mL

V2 = 1000 mL

Solving for M2:

M2 = (M1 x V1) / V2

M2 = (0.5 M x 340 mL) / 1000 mL

M2 = 0.17 M

So the final concentration of the NaBr solution will be 0.17 M if you add enough water to make a total volume of 1000 mL.