данo
m(BaCL2) = 130 g
m(BaSO4) - ?
n(HCL) - ?
BaCL2+H2SO4-->2HCL+BaSO4
M(BaCL2) = 208 g/mol
n(BaCL2) = m/M = 130 / 208 = 0.625 mol
n(BaCL2) = n(BaSO4) = 0.625 mol
M(BaSO4) = 233 g/mol
m(BaSO4) = n*M = 0.625 * 233 = 145.625 g
n(BaCL2) = 2n(HCL)
n(HCL) = 0.625 * 2 = 1.25 mol
ответ 145.625 g BaSO4 , 1.25 mol HCL
данo
m(BaCL2) = 130 g
m(BaSO4) - ?
n(HCL) - ?
BaCL2+H2SO4-->2HCL+BaSO4
M(BaCL2) = 208 g/mol
n(BaCL2) = m/M = 130 / 208 = 0.625 mol
n(BaCL2) = n(BaSO4) = 0.625 mol
M(BaSO4) = 233 g/mol
m(BaSO4) = n*M = 0.625 * 233 = 145.625 g
n(BaCL2) = 2n(HCL)
n(HCL) = 0.625 * 2 = 1.25 mol
ответ 145.625 g BaSO4 , 1.25 mol HCL