Discuss what a titration is and what it is used for.
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Discuss/Explain what an indicator is, what its purpose is and why the choice of indicator is important.
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Discuss what a titration is and what it is used for. _________________________ Discuss/Explain what an indicator...
Define an acid-base indicator. Explain why phenolphthalein is chosen as an indicator for the titration for standardizing NaOH, determining % composition of KHP, and determining the acid content of vinegar. (Look up for the Ka for the indicator online and explain why this indicator is chosen for these titrations)
What is the indicator we are using in this titration? In your own words, what is the purpose of grinding the spirulina? Should the ground silica and spirulina mixture be suspended in deionized water, exhibit water, or buffer? Why? What is the color of the folded phytobilliprotein with the bound cofactor? How do you expect it to change as you add acid or base?
Why is bromophenol blue rather than phenolphthalein used as an indicator for the antacid titration?
Answer should discuss how buffering action occurs and affects
the pH of a titration before and after equivalence point. Also
discuss how this affects the pH of equivalence point, with the rate
of pH changes, relating to effectiveness of indicator. Also the
potential accuracy of an indicator in a system !
7. Explain why the titration curve for the titration of a weak base with a weak acid is both difficult to calculate changes in value near the equivalence point,...
ACID-BASE TITRATION 4) What is the purpose of the indicator? 5) Does the indicator participate in the reaction with the acid and base? 6) Define endpoint. Define equivalence point. Calculate the volume in mL of 0.100M NaOH required to neutralize 2.50mL of 0.150M HC2H302 HC2H302(aq) + NaOH(aq) + NaC2H2O2(aq) + H2O(1)
Explain each of the following terminologies: Back titration, Blocking (of indicator), Chelate, Chelate effect, Complexometric titration, Direct titration, Formation constant, Metal ion indicator, Multidentate ligand
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
Which indicator below could be used in the titration of aqueous NaOH with HCl solution? Indicator Acid Range Color Color-change pH Basic Range Color i. pink 1.2-2.8 yellow ii. blue 3.4-4.6 yellow iii. yellow 6.5-7.8 purple iv. colorless 8.3-9.9 red
Which method can be used to detect the end point of an EDTA titration? redox indicator metal ion indicator ion-selective electrode acid-base indicator O
In a titration, the indicator is used to signal when the endpoint has been reached. O False O True