дано
m(Mg) = 48 g
V(H2)-?
Mg+H2SO4-->MgSO4+H2
M(Mg) = 24 g/mol
n(Mg) = m/M = 48 / 24 = 2 mol
n(Mg) = n(H2) = 2 mol
V(H2) = n(H2) * Vm = 2*22.4 = 44.8 L
ответ 44.8 л
дано
m(Mg) = 48 g
V(H2)-?
Mg+H2SO4-->MgSO4+H2
M(Mg) = 24 g/mol
n(Mg) = m/M = 48 / 24 = 2 mol
n(Mg) = n(H2) = 2 mol
V(H2) = n(H2) * Vm = 2*22.4 = 44.8 L
ответ 44.8 л