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A mixture contains 40% ferrous oxide, 30% ferric oxide and 30% ferousoferic oxide by mass. What is the percentage of iron content by mass in the mixture?
Answer Given :- 73.83%
Need proper explanation. Thanks!
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A mixture contains 40% ferrous oxide, 30% ferric oxide and 30% ferousoferic oxide by mass. What is the percentage of iron content by mass in the mixture?
Answer Given :- 73.83%
Need proper explanation. Thanks!
P.S. Avoid Spam, Moderator Here.
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Answer:
73.766474 %
Explanation:
Pls refer to the attachment above for the solution.
My ans. is 73.766474% and not 73.83% because I have taken the approximate value of atomic mass of iron ( Fe) . Actual atomic mass of Fe is 55.845u , but for the ease of calculation I have taken it 55.8 . In last step , if you put 55.845 instead of 55.8 & calculate it with a calculator , you will get answer 73.825963 which will get rounded off to 73.83 .