What volume of a 0.5 M solution is required to prepare 250 mL of a 0.15M solution? (Note: M = mole per Litre)
Is 175ml correct?
No. 175 is not correct. Use the dilution formula of
c1v1 = c2v2
c = concn
v = volume
0.5M x v1 = 0.15 x 250
v1 = ?
To determine the volume of the 0.5 M solution required, we can use the equation:
C1V1 = C2V2
Where:
C1 = concentration of the initial solution (0.5 M)
V1 = volume of the initial solution (unknown)
C2 = concentration of the final solution (0.15 M)
V2 = volume of the final solution (250 mL)
Rearranging the equation to solve for V1, we have:
V1 = (C2 * V2) / C1
Substituting the given values, we get:
V1 = (0.15 M * 250 mL ) / 0.5 M
V1 = 75 mL
Therefore, the volume of the 0.5 M solution required to prepare 250 mL of a 0.15 M solution is 75 mL, not 175 mL.