Question

Convert into mile
(a) 12g of oxygen gas
(b) 20g of water
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Answer 1

Answer:

(a) Molar mass of O2 = 2 x 16 = 32 g

Number of moles in 12g O2 = Given mass/ Molar mass = 12/32 = 0.375 mole

(b) Molar mass of H2O = 2 x 1 + 16 = 18g

Number of moles in 20 g H2O = 20/18 = 1.11mole

Step-by-step explanation:

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