To measure the amount of iron in a certain type of iron ore, an analytical chemist dissolves a 20.0 g sample in strong acid and titrates it to the endpoint with 40.5 mL of 0.2400 M potassium permanganate (KMnO,) solution. The balanced chemical equation for the reaction is: 3 + 2+ 5Fe (aq) + Mn (aq) + 4 H,0 () 8H (aq) + 5Fe(aq) + MnO, (aq) precipitation acid-base What kind of reaction is this? ? redox If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. said this was a redox reaction, enter the chemical symbol of the element If you that is oxidized. Calculate the mass percent of Fe in the sample. Be sure your answer has 3 significant digits 0% Explanation Check Priv 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use

Question

What kind of reaction is this if it is. Precipitate write down the formula if you said acid-base right down the formula you said redox write down the formula then calculate the mass percent of FE in the sample be sure your answer has to be significant digits. 

To measure the amount of iron in a certain type of iron ore, an analytical chemist dissolves a 20.0 g sample in strong acid and titrates it to the endpoint with
40.5 mL of 0.2400 M potassium permanganate (KMnO,) solution.
The balanced chemical equation for the reaction is:
3 +
2+
5Fe (aq) + Mn (aq) + 4 H,0 ()
8H (aq) + 5Fe(aq) + MnO, (aq)
precipitation
acid-base
What kind of reaction is this?
?
redox
If you said this was a precipitation reaction, enter the chemical formula of the
precipitate.
If you said this was an acid-base reaction, enter the chemical formula of the
reactant that is acting as the base.
said this was a redox reaction, enter the chemical symbol of the element
If
you
that is oxidized.
Calculate the mass percent of Fe in the sample. Be sure your answer has 3
significant digits
0%
Explanation
Check
Priv
2019 McGraw-Hill Education. All Rights Reserved. Terms of Use

Image Transcription

To measure the amount of iron in a certain type of iron ore, an analytical chemist dissolves a 20.0 g sample in strong acid and titrates it to the endpoint with 40.5 mL of 0.2400 M potassium permanganate (KMnO,) solution. The balanced chemical equation for the reaction is: 3 + 2+ 5Fe (aq) + Mn (aq) + 4 H,0 () 8H (aq) + 5Fe(aq) + MnO, (aq) precipitation acid-base What kind of reaction is this? ? redox If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. said this was a redox reaction, enter the chemical symbol of the element If you that is oxidized. Calculate the mass percent of Fe in the sample. Be sure your answer has 3 significant digits 0% Explanation Check Priv 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use

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