Calculate the formula masses of the following compounds.(Na=23u, O=16u,
Al=27u)
i) Sodium Oxide ii) Aluminium Oxide
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Answer:
i)Formula mass of Na2O = 2(23)+1(16)
= 46+16
= 62 u
ii)Formula mass of Al2O3 = 2(27)+3(16)
= 54+48
= 102 u
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