How much water would you add to 10 ml of a 1.0 m salt solution to change its concentration to 0.001 m?

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12-09-2022
Chemistry

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How much water would you add to 10 ml of a 1.0 m salt solution to change its concentration to 0.001 m?

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tripatsingh039 tripatsingh039 · Answer 1 · 2022-09-14T16:46:57-04:00

1000 times dilution of 1.0M salt solution needs to be done to obtain a solution with 0.001M concentration.

Dilution is the method of reducing a solute's concentration in a solution. It generally only involves mixing the solution with extra solvent, such as water.

Serial dilution is the best option to obtain 0.001M concentration from a stock solution of 1.0M salt solution.

1ml 1.0M solution + 9ml water = 0.1M concentration (10 times dilution)

1ml 0.1M solution + 9ml water = 0.01M concentration (100 times dilution)

1ml 0.01M solution + 9ml water = 0.001M concentration (1000 times dilution)

This method of dilution also saves water, time and energy.

OR

To 10ml of 1.0M salt solution, 990ml of water should be added to obtain a solution of 0.001M concentration.

Learn more about Dilution here:

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