How many moles of Hg will be produced from 34.0 g of HgO?

0.157 moles of Hg will be produced from 34.0 g of HgO.

Explanation:

2HgO → 2Hg + O2

Molar mass of HgO = 216.59 g / mol

34.0 g / (216.59 g / mol) = 0.156979 mol HgO

1: HgO: Hg = 1 coefficient ratio (mol defense) because,

0.156979 mol HgO = 0.156979 mol Hg

= 0.157 mol of Hg.

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