To what volume should you dilute 30 mL H2SO4 of a 10.0 M H2SO4 solution to obtain a 0.140 M H2SO4 solution?
mL x M = mL x M
To determine the volume needed to dilute a given concentration of a solution, you can use the formula for dilution:
C1V1 = C2V2
Where:
C1 = initial concentration of the solution
V1 = initial volume of the solution
C2 = final concentration of the solution
V2 = final volume of the solution
In this case, you want to dilute 30 mL of a 10.0 M H2SO4 solution to obtain a 0.140 M H2SO4 solution. Let's calculate the final volume (V2):
C1 = 10.0 M
V1 = 30 mL
C2 = 0.140 M
V2 = ?
Using the formula for dilution:
C1V1 = C2V2
10.0 M × 30 mL = 0.140 M × V2
300 mL = 0.140 M × V2
Now, solve for V2:
V2 = (300 mL) / (0.140 M)
V2 ≈ 2142.86 mL
Therefore, to obtain a 0.140 M H2SO4 solution, you will need to dilute 30 mL of a 10.0 M H2SO4 solution to approximately 2142.86 mL.