You have 100.0 mL of a 0.2500 M solution of NaCl in a beaker. Days later, the solution is now 0.4258 M. How

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You have 100.0 mL of a 0.2500 M solution of NaCl in a beaker. Days later, the solution is now 0.4258 M. How

[From: ] [author: ] [Date: 11-11-28] [Hit: ]

V1= 100.M2= 0.......

You have 100.0 mL of a 0.2500 M solution of NaCl sitting in a beaker. After several days you test the solution and find that it is now 0.4258 M. How much water must have evaporated?

Can someone show me the steps to answer this question?

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M1xV1=M2xV2

M1= 0.2500M
V1= 100.0 ml
M2= 0.4258M
V2= Unkown

Solve for V2

(M1xV1/M2)=V2

1

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