The next 7 questions are related to the titration of 40.0 mL of a 0.0150 M Zn2+ solution with 0.0250 M EDTA in a solution buffered at pH 5. Assume that the temperature is 25 oC and that the formation constant for Zn2+ is 3.13 x 1016 at this temperature.
Need help with the last one please! 



The next 7 questions are related to the titration of 40.0 mL of a 0.0150 M Zn2+ solution with 0.0...
The next 11 questions are related to the titration of 40.00 mL of a 0.0850 M acetic acid solution with 0.0700 M KOH. Assume that the temperature is 25 oC. The initial pH of the analyte solution is: 2.91 The volume of KOH required to reach the equivalence point of the titration is: 48.57 mL Number of mmol of acetate present at the equivalence point: 3.400 The total volume of the solution at the equivalence point: 88.57 mL The analytical concentration...
The next 9 questions are related to the titration of 20.00 mL of a 0.0700 M acetic acid solution with 0.0950 M KOH. What is the initial pH of the analyte solution? What volume of KOH is required to reach the equivalence point of the titration (in mL)? How many mmol of the salt are present at the equivalence point? (ANALYTICAL AMOUNT, NOT EQUILIBRIUM AMOUNT) What is the volume of the solution at the equivalence point (in mL)? What is...
The next 9 questions are related to the titration of 25.00 mL of a 0.1000 M acetic acid solution with 0.0850 M KOH. What is the initial pH of the analyte solution? What volume of KOH is required to reach the equivalence point of the titration (in mL)? How many mmol of the salt are present at the equivalence point? (ANALYTICAL AMOUNT, NOT EQUILIBRIUM AMOUNT) What is the volume of the solution at the equivalence point (in mL)? What is...
An unknown solution was analyzed for Ni by an EDTA titration. A 50.00 mL sample of the unknown was treated with 25.00 mL of 0.2404 M EDTA. The excess EDTA was then back titrated with 8.52 mL of 0.0694 M Zn2+ to reach the equivalence point. What was the concentration of Ni (in unit of M) in the 50.00 mL sample? Please keep your answer to three decimal places.
The next 9 questions are related to the titration of 25.00 mL of a 0.1000 M acetic acid solution with 0.1000 M KOH. 1.What is the initial pH of the analyte solution? 2.What volume of KOH is required to reach the equivalence point of the titration (in mL)? 3.How many mmol of the salt are present at the equivalence point? (ANALYTICAL AMOUNT, NOT EQUILIBRIUM AMOUNT) 4.What is the volume of the solution at the equivalence point (in mL)? 5.What is...
3. A 25.00 mL 0.0250 M calcium carbonate sample is titrated with 14.3 mM EDTA solution. Both sample and titrant are buffered at pH = 10.0 a. What is the titration reaction and what is the value of the conditional formation constant? b. What is the calcium ion concentration when 12.35 mL of titrant has been added? c. What is pCa2+ at the equivalence volume?
Consider the titration of 151 mL of a 0.210 M solution of caproic acid (Ka = 1.3×10-5) with 1.40 M KOH. How much titrant must be added to reach the equivalence point? V = _______ mL How much titrant must be added to reach the half-way point? V = ______ mL What is the pH at the half-way point? pH =
Ex. 13.4 The analysis of 10.00 mL 0.0100 M Ca²+ solution in water at pH 10.00 that was titrated using 0.0050 M EDTA. The conditional formation constant for this reaction under these conditions is 1.75X1010. What values of pCa would be expected (a) at the beginning of the titration; (b) 50% of the way through this titration; (c) at the equivalence point; (d) after an excess of 10.00 mL titrant has been added to this sample?
These questions are related to the titration of 40.00 mL of a 0.0850 M acetic acid solution with 0.0700 M KOH. Assume that the temperature is 25 oC. The volume of KOH required to reach the equivalence point of the titration is 48.57 mL, the number of mmol of acetate present at the equivalence point is 3.40 mmol, the total volume of the solution at the equivalence point is 88.57 mL and the analytical concentration of acetate ions at the...
10. Assume you are carrying out the titration of 50 mL of a 0.025 M solution of acetic acid with 0.1023 M NaOH. Acetic acid has a Ka of 1.8 × 10−5 . (a) Calculate the pH of the solution at V = 0, V = 0.3Veq, V = Veq, and V = 1.2Veq. (Veq is the equivalence point volume) (b) If a phenolphthalein indicator was used in this titration, where would the apparent endpoint occur? Assume the apparent endpoint...