Answer: 250 ml of stock solution with molarity of 12.0 M is measured using a pipette and 250 ml of water is added to volumetric flask of 500 ml to make the final volume of 500 ml.
Explanation:
According to the dilution law,
[tex]C_1V_1=C_2V_2[/tex]
where,
[tex]C_1[/tex] = concentration of stock solution = 12.0 M
[tex]V_1[/tex] = volume of stock solution = ?
[tex]C_2[/tex] = concentration of diluted solution= 6.00 M
[tex]V_2[/tex] = volume of diluted acid solution = 500 ml
Putting in the values we get:
[tex]12.0\times V_1=6.00\times 500[/tex]
[tex]V_1=250ml[/tex]
Thus 250 ml of stock solution with molarity of 12.0 M is measured using a pipette and 250 ml of water is added to volumetric flask of 500 ml to make the final volume of 500 ml.
