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18-01-2022
Chemistry

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

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misteradam0312 misteradam0312

18-01-2022

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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