Question

The molar mass of HgO is 216.59 g/mol. The molar mass of O2 is 32.00 g/mol. How many moles of HgO are needed to produce 250.0 g of O2?

Answer 1

Thus 15.63 moles of HgO are required to produce 250 g or Oxygen.

Explanation:

Given data:

• Molar mass HgO is 216.59 g/mol
• Molar mass of O2 is 32.00 g/mol
• 250.0 g of O2

To Find: Moles of HgO

Solution:

Balanced equation is:

2HgO → 2Hg + O2

250g O2 (1 mole O2/32.00 g/mol O2) (2 moles HgO/1 mol O2)

= 15.63 moles HgO

Thus 15.63 moles of HgO are required to produce 250 g or Oxygen.