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garik1379 [7]
2 years ago
12

How many particles of oxygen gas are in 22.0 grams of oxygen ?

Chemistry
1 answer:
lianna [129]2 years ago
5 0

Moles of oxygen = 22g / 32 (Mr of O2)

Moles of oxygen = 0.7 moles (1 dp)

Avogadro's constant = 6.02×10^23 particles per mole

0.7 moles×(6.02×10^23) = Answer

This is assuming it wants O2, if it wants pure oxygen then replace 32 with 16.

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