Use the equation

2HgO--> 2Hg+O2

to find how many moles of mercury are produced if 27 g of oxygen are produced.

2.1

1.3

2.6

2.4

1.68 mole mercury produced.

Explanation:

Given dа ta:

Mass of oxygen produced = 27 g

Moles of mercury produced = ?

Solution:

Chemical equation:

2HgO → 2Hg + O₂

Moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 27 g / 32 g/mol

Number of moles = 0.84 mol

Moles of mercury produced:

O₂ : Hg

1 : 2

0.84 : 2*0.84 = 1.68 mol