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Svetach [21]
3 years ago
9

What mass of oxygen is contained in a 5.8 g sample of NaHCO3?

Chemistry
1 answer:
White raven [17]3 years ago
4 0
Molar mass of NaHCO3 is 83.9. moles of Na...O3= 5.8/83.9
=0.0691
for every mole of Na..O3 there are 3 O
n(O) = n(NaHCO3) x3
        = 0.207
mass of O is the moles x molar mass (16)
therefore the mass of O is 3.3 grams
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