дано
V(O2) = 2.24 L
m(HgO)-?
2HgO-->2Hg+O2
n(O2)= V(O2) / Vm = 2.24 / 22.4 = 0.1 mol
2n(HgO) = n(O2)
n(HgO) = 2*0.1 = 0.2 mol
M(HgO) = 217 g/mol
m(HgO) = n*M = 0.2 * 217 = 43.4 g
ответ 43.4 г
дано
V(O2) = 2.24 L
m(HgO)-?
2HgO-->2Hg+O2
n(O2)= V(O2) / Vm = 2.24 / 22.4 = 0.1 mol
2n(HgO) = n(O2)
n(HgO) = 2*0.1 = 0.2 mol
M(HgO) = 217 g/mol
m(HgO) = n*M = 0.2 * 217 = 43.4 g
ответ 43.4 г