Basic analytic chemistry - volumetry analysis 12.i.What is the function of the burette in a volumetric titration?ii.What is the pH when 49.00 mL of 0.100 M NaOH solution have been added to50.00 mL of 0.100 M HCl solution?iii.A sample contained Cr(III) species. A 25.00 mL portion of this sample iscombined with 10.00 mL of a 0.0875 M solution that contains a complexingagent, CDTA. This mixture is heated to boiling for several minutes to allow theCDTA to complex with Cr(III) species. The mixture is then cooled, and theexcess CDTA is measured by a back titration using 0.0258 M Bi3+, requiring4.20 mL to reach the end point. What was the original concentration of Cr(III)species in the sample? [Molar ratio of CDTA:Cr(III): Bi³+ = 1:1:1]

Volumetric analysis is quantitative analysis of sample . In volumetric analysis we measure the…

12. i. What is the function of the burette in a volumetric titration? ii. What is the pH when 49.00 mL of 0.100 M NaOH solution have been added to 50.00 mL of 0.100 M HCl solution? toinad Cran 4.25.00 of this compla in

12. i. What is the function of the burette in a volumetric titration? ii. What is the pH when 49.00 mL of 0.100 M NaOH solution have been added to 50.00 mL of 0.100 M HCl solution? toinad Cran 4.25.00 of this compla in

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.97PAE

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

Basic analytic chemistry - volumetry analysis

12.
i.
What is the function of the burette in a volumetric titration?
ii.
What is the pH when 49.00 mL of 0.100 M NaOH solution have been added to
50.00 mL of 0.100 M HCl solution?
iii.
A sample contained Cr(III) species. A 25.00 mL portion of this sample is
combined with 10.00 mL of a 0.0875 M solution that contains a complexing
agent, CDTA. This mixture is heated to boiling for several minutes to allow the
CDTA to complex with Cr(III) species. The mixture is then cooled, and the
excess CDTA is measured by a back titration using 0.0258 M Bi3+, requiring
4.20 mL to reach the end point. What was the original concentration of Cr(III)
species in the sample? [Molar ratio of CDTA:Cr(III): Bi³+ = 1:1:1]

Branch of chemistry that deals with the separation, identification, and quantification of chemical compounds. Instruments such as centrifuges, microscopes, and spectrometers are commonly used in analytical chemistry. Forensic science is well-known for being reliant on analytical chemistry techniques.

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