Use Kb, the number of moles of C8H4O4^2- at the equivalence point, and the total volume at that point to calculate the pH for each sample at the equivalence point. Compare these calculated results with the experimental results.

Use Kb, the number of moles of C8H4O4^2- at the equivalence point, and the total volume at that point to calculate the pH for each sample at the equivalence point. Compare these calculated results with the experimental results.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter14: Chromatography

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: 16. (Z)-But-2-en-l-ol 17. 1-Ethylcyclobutanol 18. (R)-Butane-1,2,4-triol 19. 2-Chlorohex-3-yn-l-ol

Q: (f) The following data were recorded for the bimolecular reaction of CIO free radicals as a function…

Q: 29) What is the AHpn for the following reaction? 2CH4) C2H4ce)+2H%g) a) 2C2H6(e) + 702()…

Q: Which of the following statements about an SN1 reaction is true? A. the reaction occurs in one-step…

A: Transition state can be defined as the state that corresponds to the highest energy in reaction…

Q: Question 12 Given the reaction: Cu + Ag+ - Cu+ + Ag The reacxtion is is assumed to be that…

Q: a. If 15.0 ml of H.SO.are required to neutralize 25.0 ml of 0.660 N KOH solutton, to what volume…

Q: The isoelectric point (pl) can be used to separate proteins from each other using electrophoresis. O…

A: A buffer is a solution which resists any change in pH on addition of small amount of acid or base.…

Q: Calculate the pH of 1.0M NaHSO2 solution. (Ka1=1.2x10-2 ; Ka2=6.6x10-8). Show the complete solution

A: Answer: pH = 3.59

Q: 1. Enthalpy and Entropy. Photosynthesis in plants converts carbon dioxide and water into glucose…

Q: Precise measurements give the following masses: nuclide mass particle mass 27 13 Al 26.98154 u 1 on…

A: Here we are required to find the energy absorbed or released during the nuclear reaction

Q: Find the AH (kJ) for the reaction below, given the following reactions and subsequent AH values:…

A: Find ∆H fir the reaction, N2H4 + 2H2O2 -----> N2 + 4H2O ∆H = ?

Q: Give the correct IUPAC name for the following compound.

Q: The equilibrium constant (Kp) is 0.11 at a particular temperature for the reaction: N204(9) =…

Q: Give the IUPAC name of the alcohol that will produce 4-methylpentanal upon reaction with pyridinium…

Q: What is the expected product of the following reaction ? 1) NAOME 2) CH;Br 3) H;O*heat

Q: A voltaic cell is constructed with two Zn2+-Zn electrodes, where the half-reaction is: Zn2+ + 2e -…

Q: Question 9 How do you call the energy that is produced due to the flow of electrons in REDOX…

Q: Predict the potential for the following voltaic cell at 25 C: Cu(s)|CuSO4(1.74 M)||AGNO3(0.58…

A: Given cell notation is : Cu(s) | Cu2+(1.74M) || Ag+ (0.58 M) | Ag (s) Calculate cell potential at…

Q: Part A THIS? Read Section 19.6 53-867): Watch KCV 19.6. IWE 19.4 AH--98 kJ, ASi-145 J/K, T- 207 K…

Q: How many grams of copper will be plated out by a current of 2.3 A applied for 25 minutes to a 0.50-M…

Q: 20.77. The nitration of methanol, CH;OH, by nitrous acid is thought to proceed via the following…

Q: Calculate the standard enthalpy of formation of phenol, C 6H5OH, at 298.15 K given that, at this…

A: We are given the reaction 2C6H5OH + 15O2 → 12CO2 + 6H2O ΔFC6H5OH = –165.0 KJ/mol ΔFH2O = –…

Q: Give the correct IUPAC name for the following compound. For alkenes, when appropriate, indicate…

Q: A student titrated a 15.00-mL sample of an unknown monoprotic acid (HA) with a 0.136 M solution of…

A: The equivalence point of a titration is the point where the number of moles of acid is equal to the…

Q: 20.77. The nitration of methanol, CH;OH, by nitrous acid is thought to proceed via the following…

Q: Consider the neutralization reaction 2 HNO3(aq) + Ba(OH),(aq) - 2 H,O(1) + Ba(NO,)½(aq) A 0.110 L…

A: For HNO3 Solution, Volume = 0.110 L Concentration = ? For Ba(OH)2 Solution, Volume = 37.5 mL =…

Q: Daing spece wil ad a Hcpole or ed nethe

A: The compounds given are,

Q: 5. What are the relationships between the following aldoses: Enantiomers, Diasteromers, but not…

Q: Which of the following compounds is the most reactive towards NaOH in water? Select one: a.…

Q: Use the E° values to determine whether the reaction: Ni (s) + Mn2+ -> Ni2+ + Mn (s) will occur…

Q: plicable monosaccharides. Sugar Fischer Haworth Chair a CHO HO OH но H- H OH ČH2OH D-idose…

Q: A sample of KHP, KHCaH.O., weighing 2.035 g is titrated with NaOH and backtitrated with HCI. NoOH…

A: Given: Mass of sample of KHP =2.035 g Volume of NaOH required =23.20 mL Volume of HCl required…

Q: To synthesize the given epoxide, what should be the geometric isomerism of the starting reagent?…

A: The ether is formed by Williamson's synthesis which is proceeded by the reaction of an alcohol with…

Q: In the following equations, what was oxidized and what was reduced? Likewise, indicate the reducing…

Q: At 300°C and at a pressure of 0 – 60 atm, the Joule-Thomson coefficient of N2(g) can be represented…

A: Solution -

Q: The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 10" years. Suppose…

Q: In the electrochemical system, what is being described by the following?…

A: In this following question given some column match and explanation each other correct match give a…

Q: Which of the following statements is FALSE? Select one: a. Aromatics are compound that are…

A: Aromatic compounds are those which obey Huckel rule. Huckel rule says that compound is aromatic…

Q: All of the following have the same delta H f except A. H2 (g) B. C(s) C. H2O (l) D. Fe (s) E. N2(g)

A: In this question, all of the substances have same ∆H formation values but except one. So, we will…

Q: An experiment was conducted to determine the over-all order of the reaction: YOI ➔ MIYA At the start…

A: We have the given chemical transformation : YOI→MIYA The rate of a reaction is defined as the change…

Q: D ОН ČI

Q: 3-chloro-1-butene reacts with sodium ethoxide in ethanol to produce 3-ethyoxy-1-butene. In the…

Q: Complete the following reaction scheme. Show stereochemistry where necessary. Show all organic…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Using the table of the weak base below, you have chosen Pyridine as your weak base in the buffer…

A: Given: Buffer solution of weak base pyridine (assuming B) and its conjugate acid HB+. pH of solution…

Q: How do you call the energy that is produced due to the flow of electrons in REDOX reaction?…

A: To explain: How do you call the energy that is produced due to the flow of electrons in the REDOX…

Q: b. HC. COOH COOH

A: Detail mechanistic pathway is given below step by step by which we get the target product

Q: 20.77. The nitration of methanol, CH;OH, by nitrous acid is thought to proceed via the following…

Q: A naturally occurring fblock element, M, forms an anionic nitrate [M(NO3)6]² , M(acac)4 and an oxide…

A: Those elements of the periodic table which have their last electrons in the f-orbital are known as…

Q: 20. (IR.2R)-Cyclopentane-1,2-diol 21. Ethyl 1-ethylpropyl ether 22. Di(p-chlorophenyl) ether 23.…

Q: true or false Elimination reactions will always form a more substituted alkene as its major product…

A: Elimination reactions like E1 and E2 both type of mechanisms always produces product according to…

Concept explainers

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

Trial 1: Initial pH= 3.92mL Mass of KHP and Paper= 0.868g Mass of paper= 0.357g Mass of KHP= 0.511g Trial 2: Initial pH= 4.09ml Mass of KHP and Paper= 0.870g Mass of paper= 0.359g Mass of KHP= 0.511g 1)Use Kb, the number of moles of C8H4O4^2- at the equivalence point, and the total volume at that point to calculate the pH for each sample at the equivalence point. Compare these calculated results with the experimental results.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

(a) During the analysis of water sample by argentometric titration, results obtained are as follows: Experiment1 2 3 4 Volume 15.5, 15.2 ,15.1 ,15.4 A)Calculate average deviation and relative average deviation for the given data. (b)Calculate the molecular weight of an unknown acid if 8.5 g of it is dissolved in 200.0 ml of water and requires 50.0 ml of 1.5 M sodium hydroxide for complete neutralization .
If pH (± 0.5 pH units) strips were used to determine the equivalence point at pH=8.5. What is the relative error (%) in pH at the equivalence point? I assumed it should be 0.5/8.5 * 100 = 5.88, rounded to 5.9 for sig figs. but I got the answer wrong. Please help and let me know how to solve this.
Trial 1 Trial 2 Trial 3 Initial burette reading (mL) 2.29 1.41 1.95 Molarity of NaOH (M) 0.100 0.100 0.100 Volume of vinegar sample (mL) 5.00 5.00 5.00 Final burette reading (mL) 50.37 49.39 49.84 Table 2. Titration data Trial 1 Trial 2 Trial 3 Initial burette reading (mL) 2.29 1.41 1.95 Molarity of NaOH (M) 0.100 0.100 0.100 Volume of vinegar sample (mL) 5.00 5.00 5.00 Final burette reading (mL) 50.37 49.39 49.84 Expected color at end point Volume of NaOH used (mL) 48.08 47.98 47.89 Compute for the ff: a. Average moles of acetic acid (mol)? b. Average molarity of acetic acid (M)? c. Average molarity of acetic acid (M)?
1. is pH scales is strictly btw 0 and 14? if not, why? 2. what is CSTR? is this heterogenous? is this concentration depends on location? 3. is steady state, mass can enter ot not? leave the control volume or not?
Based on your value of Ksp1 what is the solubility of borax in the room temperature solution? Trial 1: 0.0141 T2: 0.015 AVG: 0.0139 Temp: 293.15K
Initial pH: 10.18 Kb: 5.13x10^-5
A 190.00 mL solution of 0.00300 M AB4 is added to a 340.00 mL solution of 0.00265 M CD5. What is pQsp for AD4? Answer: (11.251)
step 1: Prepare a 1:15 soy flour-water mixture by adding l g soy flour to 15 ml distilled water in a 50-ml Falcon tube and vortex it to form a uniform suspension; pH 3.5 4.5 5.5 6.5 7.5 8.5 Dilution Factor 5 5 5 50 50 50 Absorbance 0.098 0.027 0.068 0.028 0.032 0.054 Concentration in diluted supernatant (mg/ml) 0.196 0.054 0.136 0.0056 0.0064 0.0108 Concentration in undiluted supernatant (mg/ml) 0.98 0.27 0.68 0.28 0.32 0.54 Calculate the amount (in grams) of soluble protein in the soy flour extract **Make sure to account for the dilution you made in Step 1 (Assume the volume of acid or base used to adjust the pH is negligible). Soluble protein (g) = (C x V x F) / 1000 C = concentration (mg/ml); F = dilution factor; V = volume of solution (ml)
Determine the possible ion/cation present Draw the flowchart of it CATION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS Excess NH3 NVR KSCN NVR K4Fe(CN)6 NVR K3Fe(CN)6 NVR Na2C2O4 NVR NaOH (in evaporating dish) Litmus paper: red to blue ANION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS HNO3, Fe(NO3)3 Blood red aqueous layer; colorless toluene layer HNO3, KMnO4 Peach aqueous layer; colorless toluene layer (to the ppt) CH3COOH White ppt does not dissolve MgCl2 NVR 6M H2SO4, FeSO4, 18M H2SO4 NVR POSSIBLE ION(S) PRESENT? Select one or more: NH4+ CO32- Fe3+ SO42- Cu2+ NO3- Ca2+ I- Br- PO43- Zn2+ SCN-
NO NEED FOR SOLUTION MAAM ANSWER ONLY PLS
Determine the possible ion/cation present CATION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS Excess NH3 NVR KSCN NVR K4Fe(CN)6 NVR K3Fe(CN)6 NVR Na2C2O4 NVR NaOH (in evaporating dish) Litmus paper: red to blue ANION CONFIRMATORY TEST OBSERVATION ADDED REAGENT(S) OBSERVATIONS HNO3, Fe(NO3)3 Blood red aqueous layer; colorless toluene layer HNO3, KMnO4 Peach aqueous layer; colorless toluene layer (to the ppt) CH3COOH White ppt does not dissolve MgCl2 NVR 6M H2SO4, FeSO4, 18M H2SO4 NVR POSSIBLE ION(S) PRESENT? Select one or more: NH4+ CO32- Fe3+ SO42- Cu2+ NO3- Ca2+ I- Br- PO43- Zn2+ SCN-
Table 5.1 (report)Sample DistanceFe^3+ (5.8)Co^2+ (0.8)Cu^2+ (3.0)Mixture (0.8)(3.0)(5.8)Unknown (3.0)Mobile phase(6.1)Rf - Distance/Mobile PhaseTable 5.2 (report)Sample RfFe^3+_________Co^2+_________Cu^2+_________Mixture_______Unknown______Identity of ions in unknown_____