How much of the 8% solution should we use to make 100g of a 3% solution

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18-02-2018
Mathematics

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How much of the 8% solution should we use to make 100g of a 3% solution

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mathmate mathmate · Answer 1 · 2018-02-18T16:29:14+01:00

mathmate mathmate

18-02-2018

Assuming the stock solution is 8% by weight, then

100g of 3% solution contains 100*3%=3g of pure substance.
Amount of 8% substance needed is 3/(8%) g= 3g / (0.08g) = 37.5 g of 8%

mixed with (100-37.5)=62.5 g water.

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cocoraycrimson cocoraycrimson · Answer 2 · 2022-03-21T22:16:48+01:00

cocoraycrimson cocoraycrimson

21-03-2022

Answer:

37.5

Step-by-step explanation:

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