Question

convert into moles :
i) 12 gram of oxygen gas​

Answer 1

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Here we are given the mass of oxygen gas as 12 grams. Molar mass = 2×16 = 32 grams.

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Answer 2

Answer:

Molecular weight of oxygen in grams = 32 g of oxygen= one mole of oxygen gas

12 g of oxygen = 1/32 x 12 =0.375 moles

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