How many moles of O 2 are there in 1-20 - 1022 oxygen molecules-

1.20 times; 1022 molecules of oxygen One mole of oxygen contains 6.022 times; 1023 molecules. 1.20 times; 1022 molecules of oxygen contain = 1.20 t ...

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Standard IX

Chemistry

Molar Mass

How many mole...

Question

How many moles of O₂are there in 1.20 × 10²²oxygen molecules ?

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Solution

1.20 × 10²² molecules of oxygen

One mole of oxygen contains 6.022 × 10²³ molecules.
1.20 × 10²² molecules of oxygen contain = 1.20 × 10²² / 6.022 × 10²³ = 0.01099 moles.
Hence, 1.20 × 10²² molecules of oxygen contain 0.0199 moles of oxygen.

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How many moles of O2 are there in 1.20 × 1022 oxygen molecules ?

1.20 × 1022 molecules of oxygen One mole of oxygen contains 6.022 × 1023 molecules. 1.20 × 1022 molecules of oxygen contain = 1.20 × 1022 / 6.022 × 1023 = 0.01099 moles. Hence, 1.20 × 1022 molecules of oxygen contain 0.0199 moles of oxygen.

How many moles of O₂are there in 1.20 × 10²²oxygen molecules ?

1.20 × 10²² molecules of oxygen

One mole of oxygen contains 6.022 × 10²³ molecules.
1.20 × 10²² molecules of oxygen contain = 1.20 × 10²² / 6.022 × 10²³ = 0.01099 moles.
Hence, 1.20 × 10²² molecules of oxygen contain 0.0199 moles of oxygen.