Question

care dintre soluțiile date are concentrația mai mare?
a) 10g zahăr + 150g apa
b) 20g zahăr + 300g apa
c) 30g zahăr + 450 g apa​

Answer 1

Răspuns:

a)

md=10g

ms=10+150=160g

C=10×100/160=6,25%

b)

md=20g

ms=20+300=320g

C=20×100/320=6,25%

C

md=30g

ms=30+450=480g

C=30×100/480= 6,25%