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# Chemistry: How would you prepare 10 mL of a 0.25M HCl solution

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Chemistry: How would you prepare 10 mL of a 0.25M HCl solution if 1M HCl was available? How much 1M HCL is needed? How much distilled water is used?
Submitted: 3 years ago.
Category: Homework
Expert:  DocPhilMD replied 3 years ago.
Answers are for informational purposes only. Please confirm any information given with your own doctor. If I don't respond right away, be patient.

You're going to dilute the 1 M HCl in water to get a less concentrated 0.25 M HCl. First determine the amount of moles in the final 10 mL 0.25 M HCl.

10 mL = .01 L × .25 moles/L = .0025 moles HCl

Now you work backwards with the concentrated solution.

1 mol/L × (volume) = .0025 moles HCl
Volume = .0025 liters = 2.5 mL

You need to prepare a 10 mL aqueous solution containing 2.5 mL of 1 M HCl.

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Customer: replied 3 years ago.

How much distilled water is used?

Expert:  DocPhilMD replied 3 years ago.

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