Answered

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As a clinical chemist in charge of the testing of blood samples. You are required to mix a solution of sodium chloride with water in the ratio of 2:5.

=2:5

2/7 of whole solution chloride

5/7 of whole solution is water

780ml = 2/7

1/7 = 390 ml

5/7 = 1950

Total solution

=2730ml

780ml = sodium chloride

1950ml = water

780:1950ml.


How do I put that in standard form and to an appropriate number of significant figures?

Sagot :

7.8x102 x 1.95x103 this is the answer mate
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