1. A solution contains 1.569 mg of CoSO4 (155.0 g/mol) per milliliter. Calculate a. the volume of 0.007840 M EDTA needed to titrate a 25.00 ml aliquot of this solution. b. the volume of 0.009275 M Zn²+ needed to titrate the excess reagent after addition of 50.00 ml of 0.007840 M EDTA to a 25.00-ml aliquot of this solution. c. the volume of 0.007840 M EDTA needed to titrate the Zn²+ displaced by Co²+ following addition of an unmeasured excess of ZnY2- to a 25.00-ml aliquot of the Co2+ solution. The reaction is CO²+ + ZnY2- → CoY²+ Zn²+
1. A solution contains 1.569 mg of CoSO4 (155.0 g/mol) per milliliter. Calculate a. the volume of 0.007840 M EDTA needed to titrate a 25.00 ml aliquot of this solution. b. the volume of 0.009275 M Zn²+ needed to titrate the excess reagent after addition of 50.00 ml of 0.007840 M EDTA to a 25.00-ml aliquot of this solution. c. the volume of 0.007840 M EDTA needed to titrate the Zn²+ displaced by Co²+ following addition of an unmeasured excess of ZnY2- to a 25.00-ml aliquot of the Co2+ solution. The reaction is CO²+ + ZnY2- → CoY²+ Zn²+
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:1. A solution contains 1.569 mg of CoSO4 (155.0 g/mol) per milliliter. Calculate
a. the volume of 0.007840 M EDTA needed to titrate a 25.00 ml aliquot of this solution.
b. the volume of 0.009275 M Zn²+ needed to titrate the excess reagent after addition of 50.00 ml of 0.007840 M EDTA to a 25.00-ml aliquot of this solution.
c. the volume of 0.007840 M EDTA needed to titrate the Zn²+ displaced by Co²+ following addition of an unmeasured excess of ZnY²- to a 25.00-ml aliquot of the Co²+ solution. The reaction is
Co²+ + ZnY²
COY² + Zn²+
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