The molar mass of $O_{3}$ is 48 gram per mole. How many moles are there in 480 grams of ozone?

0.1

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4.8

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Solution

The correct option is D 10
$N u m b e r o f m o l e s = \frac{G i v e n m a s s}{M o l a r m a s s} 48 g m o f O_{3} = 1 m o l e O_{3} 480 g m = \frac{1}{48} \times 480 = 10 m o l e s$

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