Odpowiedź :
I solanka
100% = 80 g
5 % = x
x = (80 * 5 )/ 100 = 400 / 100 = 4 g
80g + 20 g = 100g roztworu II
100% = 100 g
x = 4 g
x = (100 * 4) / 100 = 400 / 100 = 4 % -
stęrzenie 4 %
100% = 80 g
5 % = x
x = (80 * 5 )/ 100 = 400 / 100 = 4 g
80g + 20 g = 100g roztworu II
100% = 100 g
x = 4 g
x = (100 * 4) / 100 = 400 / 100 = 4 % -
stęrzenie 4 %