7. HgO → Hg + O2

moles of oxygen?

0.5 moles of HgO decompose to produce how many moles of oxygen

0.5 moles of HgO will produced 0.25 moles of oxygen

Explanation:

Given dа ta:

Number of moles of HgO = 0.5 mol

Number of moles of oxygen = ?

Solution:

Chemical equation;

2HgO → 2Hg + O₂

WE will compare the moles of HgO with oxygen from balance chemical equation.

HgO : O₂

2 : 1

0.5 : 1/2*0.5 = 0.25 mol

So 0.5 moles of HgO will produced 0.25 moles of oxygen.