HgO+H2-to>Hg+H2O
0,025-0,025--0,025
n HgO=\(\dfrac{8,68}{217}\)=0,04 mol
n H2=\(\dfrac{0,56}{22,4}\)=0,025 mol
=>HgO dư
=>m Hg=0,025.201=5,025g
nH2 = 0,56/22,4 = 0,025 (mol)
nHgO = 8,68/217 = 0,04 (mol)
PTHH: HgO + H2 -> (t°) Hg + H2O
LTL: 0,025 < 0,04 => H2 dư
nH2 (p/ư) = nHg = 0,025 (mol)
VH2 = (0,04 - 0,025) . 22,4 = 0,336 (l)
mHg = 0,025 . 201 = 5,025 (g)