Odpowiedź:
zad 4:
A. dane:
masa roztworu - 200g
Cp - 2%
200g - 100%
x - 2%
x= 200g * 2%/100%
x=4g
B. dane:
mr-100g
Cp- 10%
100g- 100%
x- 10%
x= 100g * 10%/100%
x =10g
C. dane:
mr-500g
cp- 1%
500g-100%
x- 1%
x= 500g * 1%/100%
x= 5g
D. dane:
mr-300g
cp- 5%
300g-100%
x. - 5%
x= 300g * 5%/100%
x = 15g
odp d
zad 5 średnio umiem sorki
