The Total Cereal has a Fe concentration of 0.6 g Fe per g of Cereal. However, it

Question

The Total Cereal has a Fe concentration of 0.6 g Fe per g of Cereal. However, it is very common for students to get less than 0.6. Which of the following can be contributors to this lower experimental result than the manufacturer listed value? There are three correct answers and find all of them.

A) The Fe was oxidized from 2+ ion to 3+ ion

B) Some Fe was lost during a few transfers between glassware

C) Other materials from Cereal sample absorbs too much light

D) Complexing agent was occupied by excess amount of H+ and did not have a chance to complex with Fe

E) Under-digestion of cereal sample

Explanation / Answer

the correct option are

B) Some Fe was lost during a few transfers between glassware .

D) Complexing agent was occupied by excess amount of H+ and did not have a chance to complex with Fe .

E) Under-digestion of cereal sample .

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