Question

acidul surfuric format in urma reactie a 5 moli de trioxid cu apa ce se dizolva in 510 g apa . Calculati concentratia procentuala masica a solutiei de acid sulfuric obtinut​

Answer 1

Răspuns:

MSO3=32+3×16=80g/mol

n=m/M

m=n×M=80×5=400g

md=400g

mapă =510g

ms=md+mapă =510+400=910g

C=md×100/ms=400×100/910=43,95%