how many moles of O2 are there in 1.20 * 1022 oxygen molecules????
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1 mole=6.022 × 10^23 molecules
1.2 * 10^22 molecules=1 * 1.2 *10^22 molecules/6.022 * 10^23 molecules
=0.019 moles
1.2 * 10^22 molecules=1 * 1.2 *10^22 molecules/6.022 * 10^23 molecules
=0.019 moles
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