SOLUTION: Water is added to 0.70 L of a 14 M NaOH solution to make 4.0 L of a diluted NaOH solution. Express your answer using two significant figures.

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Question 1072370: Water is added to 0.70 L of a 14 M NaOH solution to make 4.0 L of a diluted NaOH solution.
Express your answer using two significant figures.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
14 M means 14 MOLES per LITER.
C, new molarity when diluted
%280.70%29%2814%29=%284%29%2AC

C=%280.70%2A14%29%2F4

C=2.45



Amount of water added, cross%282.45-0.7=highlight%281.75%2Aliters%29%29
To two significant figures, cross%28highlight%281.8%2Aliters%29%29.

Answer by ikleyn(52879) About Me  (Show Source):
You can put this solution on YOUR website!
.
Water is added to 0.70 L of a 14 M NaOH solution to make 4.0 L of a diluted NaOH solution.
Express your answer using two significant figures.
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1.  It is strange to me to see this post with no question.


2.  So, I must to guess what is the question.


3.  Sure, I am smart enough to guess the question. It is 

    "Find the new concentration".


4.  The answer is: new concentration = %280.7%2A14%29%2F4 = 2.45 M (which means 2.45 Moles per Liter).


5.  The solution by "josgarithmetic" is a) WRONG,   and   b) IRRELEVANT.


6.  Next time accompany your post with the question, if you want to get a qualified answer.