a) CuO+H2SO4--->CuSO4+H2O
n H2SO4=200.24,5/100=49(g)
n H2SO4=49/98=0,5(mol)
n CuO=n H2SO4=0,5(mol)
m=m CuO=0,5.80=40(g)
b) m dd sau pư=m CuO+m H2SO4=40+200=240(g)
n CuSO4=n H2SO4=0,5(mol)
m CuSO4=0,5.160=80(g)
C% CuSO4=80/240.100%=33,33%
a, mH2SO4= \(\frac{200.24,5}{100}\)= 49(g)
nH2SO4= \(\frac{49}{98}\)= 0,5 mol
Pt: CuO + H2SO4---> CuSO4 + H2O
0,5 <---0,5----->0,5 (mol)
--->m= 0,5.80= 40 (g)
b, nCuSO4= 0,5 mol
C%CuSO4= \(\frac{0,5.160.100}{200}\)= 40%