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iVinArrow [24]
4 years ago
11

A student is asked to make 500 mL of a buffer solution for an upcoming laboratory investigation that requires 50.0 mL of 3.0 M p

hosphoric acid. The student searches the acid cabinet in the stockroom but can only find 4.5 M phosphoric acid. Calculate the amount of 4.5 M phosphoric acid the student should dilute to a total volume of 500 mL. Give our answer to the nearest tenth of a mL.
Chemistry
1 answer:
Evgen [1.6K]4 years ago
3 0

To solve this we use the equation, 

M1V1 = M2V2

<span>where M1 is the concentration of the stock solution, V1 is the volume of the stock solution, M2 is the concentration of the new solution and V2 is its volume.</span>

4.5 ( V1 ) = 3.0 ( 500 mL )

V1 = 333.33 mL needed of the 4.5 M phosphoric acid


Hope this answers the question. Have a nice day.

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