A sample of oxygen gas o2 weighs 28.4 g how many molecules of o2
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gram molecular mass of O2 =2×16=32g
32g of O2 consist of molecules=6.022×10^23
1g of O2 consist of molecules=(6.022×10^23)÷32
28.4g of O2 will consist of molecules
=0.188×10^23×28.4
=5.34×10^23
32g of O2 consist of molecules=6.022×10^23
1g of O2 consist of molecules=(6.022×10^23)÷32
28.4g of O2 will consist of molecules
=0.188×10^23×28.4
=5.34×10^23
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