9.2 г
Объяснение:
Mg + 2HBr = MgBr2 + H2
n(MgBr2) = 0.5n(HBr) = 0.5m(HBr) /M(HBr)
M(MgBr2) = 0.5m(HBr)/M(HBr) * M(MgBr2) = 0.5 * 8.1/81 * 184 = 9.2 (г)
9.2 г
Объяснение:
Mg + 2HBr = MgBr2 + H2
n(MgBr2) = 0.5n(HBr) = 0.5m(HBr) /M(HBr)
M(MgBr2) = 0.5m(HBr)/M(HBr) * M(MgBr2) = 0.5 * 8.1/81 * 184 = 9.2 (г)