What volume of 2.5 m NaOH solution is required to make 1 L of a 0.75 m NaOH?

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24-06-2017
Chemistry

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What volume of 2.5 m NaOH solution is required to make 1 L of a 0.75 m NaOH?

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festinger festinger · Answer 1 · 2017-06-24T17:06:54+02:00

festinger festinger

24-06-2017

First calculate how much moles of NaOH is there in a 1L of 0.75M:
[tex]1L*0.75M =0.75moles[/tex]
Now, find the moles of x liters of 2.5M NaOH:
[tex]x*2.5M = 2.5x\,moles[/tex]
Equating the two equations:
[tex]0.75 = 2.5x[/tex]
[tex]x=0.3L[/tex]

We need 0.3L of 2.5M NaOH to make a 0.75M of NaOH solution.

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