Oblicz stężenie procentowe roztworu orzymanego w wyniku rozpuszczenia 40g soli w 460g wody.
ms = 40g
mR = 460g
mr = ms + mR = 460 + 40 = 500g
korzystamy ze wzoru:
Cp = (ms/mr) *100%
Cp = (40/500)*100%
Cp = 8%
Cp=40/500*100%= 8%
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ms = 40g
mR = 460g
mr = ms + mR = 460 + 40 = 500g
korzystamy ze wzoru:
Cp = (ms/mr) *100%
Cp = (40/500)*100%
Cp = 8%
ms = 40g
mR = 460g
mr = ms + mR = 460 + 40 = 500g
Cp=40/500*100%= 8%