Describe three characteristics of a good acid-base indicator for a particular titration?
Describe three characteristics of a good acid-base indicator for a particular titration?
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)
4. (8 points) Describe the important characteristics of an indicator that might be used for the titration of a strong acid with a strong base. 5. (10 points) Solubility questions. a. Write the formula for cupric phosphate. b. Write the dissolution equation for cupric phosphate. c. Write the solubility product constant expression for cupric phosphate.
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)
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...
compare and contrast the colorimetric determination of a titration equivalence point using an acid-base indicator versus electrochemical determination of a titration equivalence point using a pH meter. please explain pros and cons of both methods
Explain which of the following indicators would be appropriate for a strong acid-strong base titration? Indicator pH of color change Bromphenol blue 3.0 - 4.6 Bromothymol blue 6.0 - 7.6 Phenolphthalein 8.0 - 9.6
To calculate the concentration of a solution using acid–base titration data. In an acid–base titration, an acid (or base) of known concentration is added to a base (or acid) of unknown concentration until the number of moles of H+ and OH- are equal, a condition called the equivalence point. Since you know the number of moles of H+ (or OH- ) that you added, you can determine the number of moles of OH- (or H+) in the unknown solution. For...
To calculate the concentration of a solution using acid–base titration data. In an acid–base titration, an acid (or base) of known concentration is added to a base (or acid) of unknown concentration until the number of moles of H+ and OH- are equal, a condition called the equivalence point. Since you know the number of moles of H+ (or OH- ) that you added, you can determine the number of moles of OH- (or H+) in the unknown solution. For...
4. Phenolphthalein is an acid-base indicator. indicator (cite your source: textbook, webite, etc.) Describe the general properties of an acid-base 5. Consider the following reaction at equilbrium: Explain the effect of increasing the concentration of Ni gas on the concentration of the reactants and products when a new equilibrium is reached. Indicate which concentrations will be increased and which concentrations will be decreased when a new equilbrium is reached. Na: Increased or decreased 02: Increased or decreased NO: Increased or...
In this experiment an EDTA titration was performed. Another common type of titration is an acid-base titration. Specifically, a neutralization titration can be used to determine the concentration of a strong acid if it is titrated with a strong base whose concentration is known. This method uses stoichiometry to determine the unknown acid's concentration. Let's say a student had 1.0 M sodium hydroxide ( a? ) and found a solution of sulfuric acid 2 04) whose label had faded. She...