Calculate the formula unit masses of ZnO, Na2O, K2CO3 and KNO3 [Given atomic masses of Zn = 65 u, Na = 23 u, K = 39 u, C = 12 u, N = 14u and O = 16 u]
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Explanation:
ZnO=65u+16u=81
Na2O=23*2+16u=62
K2CO3=39u*2+12u+16u*3=138
KNO3=39u+23u+16u*3=110
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