Do 5kg 5-procentowego roztworu cukru dodano 100 g cukru. Jakie jest stężenie procentowe otrzymanego roztworu.
ms = 0,05 * 5 000g + 100g = 250g+100g = 350g
mr = 5 000g + 100g = 5 100g
cp=6,9%
5kg= 5000g 5%= ms1/5000g * 100% ms1= 250g ms2= 250g + 100g = 350g mr1= 5000g + 100g= 5100g Cp2= 350g/5100g * 100% Cp2= 6,86% Pozdrawiam, kate66 :)
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ms = 0,05 * 5 000g + 100g = 250g+100g = 350g
mr = 5 000g + 100g = 5 100g
cp=6,9%
5kg= 5000g
5%= ms1/5000g * 100%
ms1= 250g
ms2= 250g + 100g = 350g
mr1= 5000g + 100g= 5100g
Cp2= 350g/5100g * 100%
Cp2= 6,86%
Pozdrawiam, kate66 :)