дано
m(ppa Na2SO4) = 220 g
W(Na2SO4) =15%
+BaCL2
m(BaSO4)-?
m(Na2SO4) = 220 *15% / 100% = 33g
Na2SO4+BaCL2-->BaSO4+2NaCL
M(Na2SO4) = 142 g/mol
n(Na2SO4) = m/M = 33 / 142 = 0.23 mol
n(Na2SO4) = n(BaSO4) = 0.23 mol
M(BaSO4) = 233 g/mol
m(BaSO4) = n*M = 0.23 * 233 = 53.59 g
ответ 53.59 г
Объяснение:
дано
m(ppa Na2SO4) = 220 g
W(Na2SO4) =15%
+BaCL2
m(BaSO4)-?
m(Na2SO4) = 220 *15% / 100% = 33g
Na2SO4+BaCL2-->BaSO4+2NaCL
M(Na2SO4) = 142 g/mol
n(Na2SO4) = m/M = 33 / 142 = 0.23 mol
n(Na2SO4) = n(BaSO4) = 0.23 mol
M(BaSO4) = 233 g/mol
m(BaSO4) = n*M = 0.23 * 233 = 53.59 g
ответ 53.59 г
Объяснение: