If 100 mL of a 12 M solution of HCl is diluted to a final volume of 500 mL, what would be the final concentration of the diluted HCl?

Dilution formula:
mv = MV

where one side is concentration × volume BEFORE dilution and the other side is concentration × volume AFTER dilution.

(100mL) × (12 M) = (500mL) × (X)
(1200 M·mL) = (500mL) × (X)
(1200 M·mL) / (500mL) = X
2.4 M = X

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aliasger2709 aliasger2709 · Answer 2 · 2022-05-23T11:36:47+02:00

The dilution of the solution is the decrease in the molar concentration. The final molarity of the hydrochloric solution after dilution will be 2.4 M.

What is molar dilution?

Molar dilution is the dilution of the solution by either increasing the volume or decreasing the molarity of the solution. It is given by the formula:

[tex]\rm M_{1}V_{1} = M_{2}V_{2}[/tex]

Given,

Initial molarity = 12 M

Initial volume = 100 mL

Final volume = 500 mL

The final concentration of HCl is calculated as:

12 * 100 = M * 500

M = 1200/ 500

= 2.4 M

Therefore, after dilution 2.4 M will be the molar concentration.

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