Answers

2016-02-05T13:05:21+05:30
One mole of oxygen weighs = 16g
10g of oxygen conatins  \frac{10}{16}  g
that is 0.625 mole.
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2016-02-05T16:20:59+05:30
molar mass of oxygen = 16 g
therefore number of moles in 10 grams,
n = m/M
n =10/16
n = 0.625
therefore the answer is 0.625 moles ....
i hope it helps..........
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