1. How many oxygen atoms are in 225 g O2?
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no. of molecules in 16 grams O2 = 6.022*10²³
no. oof molecules in 225g= 6.022*10²³ *225 /32
no. of atoms = 6.022*10²³ *225 *2/32= 84.7* 10²³
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no. oof molecules in 225g= 6.022*10²³ *225 /32
no. of atoms = 6.022*10²³ *225 *2/32= 84.7* 10²³
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