lanachesson lanachesson

20-03-2018
Chemistry

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how many moles of mercury 2 oxide are needed to produce 125 grams of oxygen

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kpopexo345 kpopexo345

20-03-2018

2 HgO >> 2 Hg + O2
moles O2 = 125 g / 32 g/mol =3.91
the ratio between HgO and O2 is 2:1
moles HgO needed = 2 x 3.91 =7.82
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