J.R. S. answered • 10/25/22
Tutor
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Ph.D. in Biochemistry--University Professor--Chemistry Tutor
(x ml)(5%) = (1000 ml)(1%)
x = 200 mls
Now convert 200 mls to pints
1 pint = 473 mls
200 mls x 1 pint / 473 mls = 0.4 pints
J.R. S.
tutor
The 200 mls is a result of the calculation of (x ml)(5%) = (1000 ml)(1%). This is essentially V1M1 = V2M2 or V1C1 = V2C2 which they teach in chemistry class. The algebraic solution is x = 200 mls. Another way to do it if you don't care for algebra is as follows: you are going from 5% to 1% and that is a 5-fold dilution. If you want 1000 mls, then 1/5 of that (5 fold) is 200 mls. Hope that explains it.
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10/26/22
Tyl O.
I was wondering how did you get the 200 mL? I was confused while figuring it out.10/26/22