дано
m(ppa NaOH) = 600 g
W(NaOH) = 12%
NaALO2-?
m(NaOH) = 600 * 12% / 100% = 72 g
2NaOH+Al2O3-->2NaAlO2+H2O
M(NaOH) = 40 g/mol
n(NaOH) = m/M = 72 / 40 = 1.8 mol
2n(NaOH) = 2n(NaAlO2) = 1.8 mol
M(NaAlO2) =82 g/mol
m(NaALO2) = n*M = 1.8 * 82 = 147.6 g
ответ 147.6 г
Объяснение:
дано
m(ppa NaOH) = 600 g
W(NaOH) = 12%
NaALO2-?
m(NaOH) = 600 * 12% / 100% = 72 g
2NaOH+Al2O3-->2NaAlO2+H2O
M(NaOH) = 40 g/mol
n(NaOH) = m/M = 72 / 40 = 1.8 mol
2n(NaOH) = 2n(NaAlO2) = 1.8 mol
M(NaAlO2) =82 g/mol
m(NaALO2) = n*M = 1.8 * 82 = 147.6 g
ответ 147.6 г
Объяснение: