дано
m(C3H8) = 8.8 g
m(H2O)-?
C3H8+5O2-->3CO2+4H2O
M(C3H8) = 44 g/mol
n(C3H8) = m/M = 8.8 / 44 = 0.2 mol
n(C3H8) = 4n(H2O)
n(H2O) = 4*0.2 = 0.8 mol
M(H2O) = 18 g/mol
m(H2O) = n*M = 0.8*18 = 14.4 g
ответ 14.4 г
Объяснение:
дано
m(C3H8) = 8.8 g
m(H2O)-?
C3H8+5O2-->3CO2+4H2O
M(C3H8) = 44 g/mol
n(C3H8) = m/M = 8.8 / 44 = 0.2 mol
n(C3H8) = 4n(H2O)
n(H2O) = 4*0.2 = 0.8 mol
M(H2O) = 18 g/mol
m(H2O) = n*M = 0.8*18 = 14.4 g
ответ 14.4 г
Объяснение: