Question #347790
How many grames of mercury and how many grams of oxygen are formed from 45.5g of HgO?
Expert's answer
Solution:
The molar mass of HgO is 216.59 g/mol
The molar mass of Hg is 200.59 g/mol
The molar mass of O2 is 31.998 g/mol
Mercury(II) oxide (HgO) decomposes on heating to give mercury (Hg) and oxygen gas (O2).
It is a thermal decomposition reaction and the balanced equation can be written as:
2HgO(s) → 2Hg(l) + O2(g)
According to stoichiometry:
Answer: 42.1 grames of mercury (Hg) and 3.36 grams of oxygen gas (O2) are formed
