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?
Given:
Molar
mass HgO is 216.59 g/mol
molar mass of O2 is 32.00 g/mol
250.0 g of O2
Required:
Moles of HgO
Solution:
Balanced equation
is:
2HgO → 2Hg
250g O2
(1 mole O2/32.00 g/mol O2)(2 moles HgO/1 mol O2) = 15.63 moles HgO