Concept explainers
Interpretation:
The
Concept introduction:
Acid–base titration is a technique to analyze the unknown concentration of the acid or base with the help of the known concentration of the acid and base.
The equivalence point is the point in an acid–base titration in a
In strong acid–base titration, the pH of the solution is neutral (i.e. pH = 7) at equivalence point.
In weak acid–strong base titration, the pH of the solution is not neutral (pH> 7) at equivalence point.
In strong acid–weak base titration, the pH of the solution is not neutral (pH < 7) at equivalence point.
The number of moles of the molecule are calculated as:
The number of millimoles of a molecule are calculated as:
For acidic buffer, the value of
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CHEMISTRY- BUNDLE CONNECT PLUS ACCESS
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- Two students were asked to determine the Kb of an unknown base. They were given a bottle with a solution in it. The bottle was labeled aqueous solution of a monoprotic strong acid. They were also given a pH meter, a buret, and an appropriate indicator. They reported the following data: volume of acid required for neutralization = 21.0 mL pH after 7.00 mL of strong acid added = 8.95 Use the students' data to determme the Kb of the unknown base.arrow_forwardA solution has a pH of 4.5. What would be the color of the solution if each of the following indicators were added? (See Fig. 14-8.) a. methyl orange b. alizarin c. bromcresol green d. phenolphthaleinarrow_forwardThe pH of a 0.10 MHOBr solution is 4.8. What is H in that solution? ____________M What is OBr-? What is HOBr? Where do the H and OBr- ions comes from? ____________M; ____________M What is the value of Ka for HOBr? What is the value of pKa?____________ ____________arrow_forward
- Obtain the pH corresponding to the following hydroxide-ion concentrations. a 4.83 1011 M b 3.2 105 M c 2.7 1010 M d 5.0 104 Marrow_forwardThe pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data: C8H10N4O2(aq)+H2O(l)C8H10N4O2H+(aq)+OH(aq)arrow_forwardWhich base in Table 14.3 is must appropriate for preparation of a buffer solution with a pH of 10.65? Explain your choice.arrow_forward
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