Queenristyp Queenristyp

07-10-2016
Mathematics

contestada

A laboratory technician needs to make a 40-liter batch of a 40% acid solution. how can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 20% to get the desired concentration?

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sdahamer sdahamer

09-10-2016

you need to do is 40 times 40%

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