Chemistry

Started by 7777777, May 29, 2012, 09:58:41 PM

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7777777

May 29, 2012, 09:58:41 PM
Express the concentration of a 2.0 M NaOH solution as a mass/volume percent.

How do you do this question?

uma

#1
June 21, 2012, 11:09:34 PM
2.0 M means 2.0 moles of NaOH in 1L of solution
so Volume -1L = 1000mL
mass - moles X Molar mass
mass = 2X 40 = 80 g
m/v =   (80 g/1000mL) X  100%
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