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You wish to make a 0.425 M hydroiodic acid solution from a stock solution of 3.00...

You wish to make a 0.425 M hydroiodic acid solution from a stock solution of 3.00 M hydroiodic acid. How much concentrated acid must you add to obtain a total volume of 100 mL of the dilute solution?

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Answer #1

One can calculate volume of stock HI solution required to prepare 0.425 M HI solution by using dilution formula.

We have dilution formula, C Stock V stock = C dilute V dilute

V stock = C dilute V dilute / C Stock

V stock = 0.425 M 100 ml / 3.00 M

V stock = 14.16 ml

ANSWER : One can dilute 14.2 ml of 3.00 M HI solution to 100 ml to make 0.425 M HI solution.

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