what mass of C0² will contain some number of atoms as are contained in 20 gram of oxygen molecule?
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Molecular mass of CO2 = 1(12) +2(16)
=12 + 32
=44 g
16 g of oxygen =6.022×10²³atoms
1 g of oxygen = [6.022×10²³/16] atoms
20 g of oxygen =[(6.022×10²³/16)×20] atoms
= 7.5275 × 10²³ atoms
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