Q1) a) What is i) a standard solution? ii)a reduction-oxidation (redox) reaction? b) A standard solution of hydrated Iron (1I) sulphate, FeSO4.xH20, as prepared by dissolving 5.8g of the salt in a volumetric flask making it to 250ml (250 cm³), 25ml (25 cm³) of this solution was acidified and found to react with 22.8ml (22.8 cm³) of 0.018MPotassium permanganate solution. The half equation for the reaction are: Mn"(an)* MnO4(aq) + 8H'(aq) Fe"(aq) + 4H;Oµ) Fe?"(ag) + e i) 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. iii)Why is it necessary to acidify the Iron(II)sulphate before titration ?

Q1) a) What is i) a standard solution? ii)a reduction-oxidation (redox) reaction? b) A standard solution of hydrated Iron (1I) sulphate, FeSO4.xH20, as prepared by dissolving 5.8g of the salt in a volumetric flask making it to 250ml (250 cm³), 25ml (25 cm³) of this solution was acidified and found to react with 22.8ml (22.8 cm³) of 0.018MPotassium permanganate solution. The half equation for the reaction are: Mn"(an)* MnO4(aq) + 8H'(aq) Fe"(aq) + 4H;Oµ) Fe?"(ag) + e i) 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. iii)Why is it necessary to acidify the Iron(II)sulphate before titration ?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter4: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 158IP: The vanadium in a sample of ore is converted to VO2+. The VO2+ ion is subsequently titrated with...

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