(Total 1 mark)
12. How many oxygen atoms are there in 0.20 mol of ethanoic acid, CH3COOH?
A. 1.2 x 1023
B. 2.4 x 1023
c. 3.0 x 1024
D. 6.0 x 1024
(Total 1 mark
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Answer is option (3)
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