дано
m(BaSO4) = 23.3 g
m(BaCL2) - ?
m(Na2SO4) - ?
BaCL2+Na2SO4-->BaSO4+2NaCL
M(BaSO4) = 233 g/mol
n(BaSO4) = m(BaSO4) / M(BaSO4) = 23.3 / 233 = 0.1 mol
n(BaSO4) = n(BaCL2) = n(Na2SO4) = 0.1 mol
M(BaCL2) = 208 g/mol
m(BaCL2) = n(BaCL2) * M(BaCL2) = 0.1 * 208 = 20.8 g
M(Na2SO4) = 142 g/mol
m(Na2SO4) = n(Na2SO4) * M(Na2SO4) = 0.1 * 142 = 14.2 g
ответ m(BaCL2) = 20.8 гр , m(Na2SO4) = 14.2 гр
Объяснение:
дано
m(BaSO4) = 23.3 g
m(BaCL2) - ?
m(Na2SO4) - ?
BaCL2+Na2SO4-->BaSO4+2NaCL
M(BaSO4) = 233 g/mol
n(BaSO4) = m(BaSO4) / M(BaSO4) = 23.3 / 233 = 0.1 mol
n(BaSO4) = n(BaCL2) = n(Na2SO4) = 0.1 mol
M(BaCL2) = 208 g/mol
m(BaCL2) = n(BaCL2) * M(BaCL2) = 0.1 * 208 = 20.8 g
M(Na2SO4) = 142 g/mol
m(Na2SO4) = n(Na2SO4) * M(Na2SO4) = 0.1 * 142 = 14.2 g
ответ m(BaCL2) = 20.8 гр , m(Na2SO4) = 14.2 гр
Объяснение: