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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 + O2

 

250g O2 (1 mole O2/32.00 g/mol O2)(2 moles HgO/1 mol O2) = 15.63 moles HgO

Answer:

15.63

Explanation:

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