PRELAB ASSIGNMENT The following data was collected near the equivalence point region during a titration of 0.1025 M NaOH(aq) with 25.00 mL of a stock solution of a weak monoprotic acid. Determine the equivalence point volume, where the addition of a few drops of NaOH results in a large jump in pH. Calculate the molarity of the acid solution. Volume of NaOH added pH . 28.20 mL 5.05 28.30 5.22 28.40 5.49 28.50 6.40 28.60 10.06 28.70 10.40 28.80 10.58 28.90 10.71 29.00 10.81

PRELAB ASSIGNMENT The following data was collected near the equivalence point region during a titration of 0.1025 M NaOH(aq) with 25.00 mL of a stock solution of a weak monoprotic acid. Determine the equivalence point volume, where the addition of a few drops of NaOH results in a large jump in pH. Calculate the molarity of the acid solution. Volume of NaOH added pH . 28.20 mL 5.05 28.30 5.22 28.40 5.49 28.50 6.40 28.60 10.06 28.70 10.40 28.80 10.58 28.90 10.71 29.00 10.81

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.54QE

See similar textbooks

Similar questions

A 250 cm3 volumetric flask contains exactly 200,0 cm3 of a 0,025 mol.dm3sulphuric acid solution. Thereafter ten (10) sodium hydroxide pellets, eachof mass 0,1 g are dropped into the flask. After the pellets have dissolvedcompletely, the flask is topped to the 250 cm3 mark with water and thecontents are thoroughly homogenised. Determine the pH of the resultingsolution.
A 4.0520g sample of HCl, specific Gravity 11.18, required 44.15ml of 0.9035M of Sodium Hydroxide in titration, compute for percent purity. Please explain thoroughly. Final answer in percent.
Calculate the volume in milliliters of 0.368 M KOH necessary to titrate 0.0209 moles of acetic acid (HOAc, HC2H3O2) to a phenolphthalein end-point. Report the answer with a precision of two decimal places.
) A truck driver carrying a load of lead nitrate (Pb(NO3)2) lost control of his semi- truck after hitting a patch of ice and crashed the truck into Blue Lake, which was right next to the highway. Despite the best efforts of the emergency workers, several of the crates containing lead nitrate were damaged, and the highly soluble compound dissolved immediately. Assuming the lake is initially at circumneutral pH (7), and that the spill resulted the in a total lead concentration of 10-3 M within the lake. Based on the following information, will PbO(s) precipitate out of Blue Lake. Assume all lead nitrate dissociates into Pb+2 and NO3-, no other sources of lead exist in the lake and that no other reactions besides the equations shown below occur. PbO(s) + 2H+ ⇌ PbO(s) + H+ ⇌ PbO(s) + H2O ⇌ PbO(s) + 2H2O ⇌ Pb2+ + H2O PbOH+ + H2O Pb(OH)2o Pb(OH)3- + H+ logKs0/ksp =14 logK1=3.4 logK2=-0.5 logK3=-12
A 20.00 mL aliquot of lactic acid solution (HCH3H5O3) was titrated with 0.0980 M KOH(aq) using both an indicator and a pH meter. Ka (HCH3H5O3), is 1.38 x10-4. A total of 28.64 mL of 0.0980 M KOH(aq) was required to reach the equivalence point 1. Calculate the molarity of the lactic acid solution. 2. Calculate the pH of the lactic acid solution 3. Calculate the pH and [CH3H5O3-] at the half-equivalence point. 4. Calculate the pH at the equivalence point of the titration. 5. Suggest an appropriate indicator for titration. 6. Calculate the pH of the solution after 10.00 mL of 0.0980 M NaOH(aq) was added
One gram of sodium hydroxide (NaOH) is used to adjust the pH of an aqueous solution (200 gallons) thatcontains 10 lbs of finely ground rhodochrosite (MnCO3) ore. Does the NaOH raise or lower the solutionpH? What is the amount of NaOH added in lbs/ton? What is the molarity (mol/l) of the system? Assumingthe NaOH is completely soluble and the system is at room temperature, what is the solid-to-liquid ratio(wt%) of the system?
Given the volume of 0.1416 M NaOH used determine the concentration of 16 ml sample each from aquaeous layer (Aq) and benzene layer (Or). To reach the end point of Aquqeous layer and organic layer 13.16 ml and 14.00 ml of NaOH used respectively using Phenolppthalein indicator. What will be the Kd of the system?
3. Calculate the (a) pH (b) pOH (c) percent ionizaton of 0.100 M ammonia. NH3 kb = 1.8x10^-5 4. Give five (5) techniques on how to produce an ideal precipitate in the analysis of sodium fluoride, NaF with silver nitrate, AgNO3 as precipitant using precipitation gravimetry. please answer all questions. I don't have questions left so i cannot repost the other question
a. A formic acid/sodium formate buffer solution can be prepared with 0.012 M each offormic acid (HCOOH) and sodium formate (NaCOOH). The Ka for formic acid is1.8 x 10-4. The simultaneous equilibrium reaction is as shown below. Calculate the pH andthe buffer capacity of the solution.
Calculate the volume in mL of 0.311 M KOH necessary to titrate 23.38mL of 0.342 M diprotic sulfuric acid, H2SO4 to a phenolphthalein end-point. Report your answer to a precision of 2 decimal places.
A 370.00 mL solution of 0.00185 M A3B4 is added to a 390.00 mL solution of 0.00100 M C3D4. What is pQsp for A3D4?
Calculate the pH at the stoich iometric po int of the titration of 25.00 cm3 of 0.150 M lactic acid with 0.188 M NaOH(aq) .