Question

In the reaction 2 HgO --> 2 Hg + O2

how many moles of O2 are produced when 5 moles of HgO are decomposed?

Answer 1

2.5 moles of oxygen are produced.

Step-by-step explanation:

Given data:

Number of moles of O₂ produced = ?

Number of moles of HgO decomposed = 5 mol

Solution:

Chemical equation:

2HgO → 2Hg + O₂

now we will compare the moles of HgO and O₂.

HgO : O₂

2 : 1

5 : 1/2×5 = 2.5

Thus, from 5 moles of HgO 2.5 moles of oxygen are produced.