Oblicz ile gramów sody trzeba dosypać do 75g wodnego roztwru tej soli o cp 6% aby otrzymać cp10%
Cp=ms/mr x 100%
0,06=ms/75
ms=4,5g
0,1=4,5+x/75+x
7,5+0,1x=4,5+x
3=0,9x
x=3,33g sody nalezy dodac
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Cp=ms/mr x 100%
0,06=ms/75
ms=4,5g
0,1=4,5+x/75+x
7,5+0,1x=4,5+x
3=0,9x
x=3,33g sody nalezy dodac