Calculate the formula unit masses of ZnO, Na2O, k2CO3,given automic masses of Zn = 65 u. Na =23 u, k=39 u, C=12 u, and O= 16 u.
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Formula Unit mass of:
1) ZnO = 65 + 16 = 81 u.
2) Na2O = 2*23 + 16 = 62 u.
3) K2CO3 = 2*39 + 12 + 3*16 = 138 u.
hinna35:
I have not understand the 3 point k2co3
two atoms of K so, 2*39 and so on
After adding the answer is not u
okk
Wht ok give the answer. After adding the result
Thanks kunal
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The formula unit mass of
(i) ZnO = 65 u + 16 u = 81 u
(ii) Na2O = (23 u x 2) + 16 u = 46 u + 16 u = 62 u
(iii) K2C03 = (39 u x 2) + 12 u + 16 u x 3
= 78 u + 12 u + 48 u = 138 u
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