Răspuns :
Concentratia de 12% inseamna ca
12g sare________100g solutie
x g sare_________2 250 000g solutie
x=2 250 000x12/100=22500x12=270 000g sare=270kg=0,270 tone
12g sare________100g solutie
x g sare_________2 250 000g solutie
x=2 250 000x12/100=22500x12=270 000g sare=270kg=0,270 tone
100 .............12
2,25.............x
x=2,25×12/100=0,27 to
2,25.............x
x=2,25×12/100=0,27 to