selenamalter
How many milliliters of a stock solution of 5.00 M KNO3 would you need to prepare 250 mL of 0.250 M KNO3?



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Peter14
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so the equation you need here is M1v1=M2v2

angga
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yes thats right @peter14

selenamalter
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so then what would i do next?

Peter14
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you know the initial molarity, the final molarity, and the final volume

Peter14
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plug it into the equation

angga
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do you get the answer @selenamalter ?

selenamalter
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no, im a little confused still

Mertsj
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Substitute. Do you know what the letters in the formula stand for?

angga
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it same with peter's formula
M1 v1 = M2 V2
5 v1 = 0.25 x 250
get it?

Mertsj
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dw:1366684902405:dw

selenamalter
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okay, let me see here

selenamalter
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1.25?