1) a) What is i) a standard solution? ii)a reduction-oxidation (redox) reaction? b) A standard solution of hydrated Iron (II) sulphate, FeSOa.xH20, as prepared by dissolving 5.8g of the salt in a volumetric flask making it to 250ml (250 cm'), 25ml (25 cm') of this solution was acidified and found to react with 22.8ml (22.8 cm') of 0.018MPotassium permanganate solution. The half equation for the reaction are: Mn0aq) +8H* Fe ea) Mn + 4H,0, Fe (ag) + e ) What is the indicator for the titration of Iron(II)sulphate and Potassium permanganate solution? ii)indicate the colour at the end point if the permanganate is in the burette. i)Why is it necessary to acidify the tron()sulphate before ttration?
1) a) What is i) a standard solution? ii)a reduction-oxidation (redox) reaction? b) A standard solution of hydrated Iron (II) sulphate, FeSOa.xH20, as prepared by dissolving 5.8g of the salt in a volumetric flask making it to 250ml (250 cm'), 25ml (25 cm') of this solution was acidified and found to react with 22.8ml (22.8 cm') of 0.018MPotassium permanganate solution. The half equation for the reaction are: Mn0aq) +8H* Fe ea) Mn + 4H,0, Fe (ag) + e ) What is the indicator for the titration of Iron(II)sulphate and Potassium permanganate solution? ii)indicate the colour at the end point if the permanganate is in the burette. i)Why is it necessary to acidify the tron()sulphate before ttration?
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
Section: Chapter Questions
Problem 40P
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Transcribed Image Text:Q1) a) What is i) a standard solution? ii)a reduction-oxidation (redox) reaction?
b) A standard solution of hydrated Iron (II) sulphate, FeSO..xH20, as prepared by dissolving 5.8g of the
salt in a volumetric flask making it to 250ml (250 cm), 25ml (25 cm') of this solution was acidified and
found to react with 22.8ml (22.8 cm) of 0.018MPotassium permanganate solution. The half equation
for the reaction are:
Mn2+ 4H,O
Feog)
Fe2
(aq) + e
) What is the indicator for the titration of Iron(Il)sulphate and Potassium permanganate solution?
i)indicate the colour at the end point if the permanganate is in the burette.
)Why is it necessary to acidify the Iron(I)sulphate before titration ?
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