Question

Deduce the number of molecules of the following compound in the given quantity 32g Oxygen

Answer 1

Answer:

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Answer 2

Explanation:

atomic mass no. of oxygen= 16

1 mole of oxygen = 16g

given: 32 g

32 = 2 × 16g

= 2 moles of oxygen

1 mole of oxygen contains Avogadro no. of molecules

i.e 6.022×10²³

2 moles will contain

2 × 6.022 ×10²³

= 12.044 × 10²³