Prepare a titration plot for the amino acid titration. From the graph determine whether your acid...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Prepare a titration plot for the amino acid titration. From the graph determine whether your acid is mono-, di-, or triprotic, determine its pK, value(s), and its formula weight. Use dashed lines on the plot to indicate all endpoints and pKa values. Identify the amino acid on the basis of your data and the information given in Table 1. Name Aspartic Acid Cysteine HCI Glutamic Acid Glutamic Acid HCI Glycine HCI Histidine Table 1 Possible amino acids Formula Weight 133.1 176.6 147.0 183.6 111.5 155.2 pKa 3.9, 9.8 1.7, 8.3, 10.8 4.3, 9.7 2.2, 4.25, 9.67 2.3, 9.6 9.2 Since some of the acids do not give sharp endpoints and since the acids may not be completely pure, the experimental formula weight value may differ from the correct value by as much as 2%. The experimental pK values may differ from those reported in Table 1 by 0.2 pK units (or more for values under 3.0). Report the identity of your unknown and its formula weight. Prepare a titration plot for the amino acid titration. From the graph determine whether your acid is mono-, di-, or triprotic, determine its pK, value(s), and its formula weight. Use dashed lines on the plot to indicate all endpoints and pKa values. Identify the amino acid on the basis of your data and the information given in Table 1. Name Aspartic Acid Cysteine HCI Glutamic Acid Glutamic Acid HCI Glycine HCI Histidine Table 1 Possible amino acids Formula Weight 133.1 176.6 147.0 183.6 111.5 155.2 pKa 3.9, 9.8 1.7, 8.3, 10.8 4.3, 9.7 2.2, 4.25, 9.67 2.3, 9.6 9.2 Since some of the acids do not give sharp endpoints and since the acids may not be completely pure, the experimental formula weight value may differ from the correct value by as much as 2%. The experimental pK values may differ from those reported in Table 1 by 0.2 pK units (or more for values under 3.0). Report the identity of your unknown and its formula weight.
Expert Answer:
Answer rating: 100% (QA)
To prepare a titration plot for the amino acid titration we need to plot the pH values against the v... View the full answer
Related Book For
Elementary Principles of Chemical Processes
ISBN: 978-1119498759
4th edition
Authors: Richard M. Felder, ? Ronald W. Rousseau, ? Lisa G. Bullard
Posted Date:
Students also viewed these chemical engineering questions
-
The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-5. Ivan's grandfather died and left a portfolio of municipal bonds. In 2012, they pay Ivan...
-
The following tetrads were produced by a cross of a Neurospora strain that had white spores (w) and a nutritional requirement for the amino acid arginine (arg) with a strain that had dark spores and...
-
Simplify each expression. Assume that all variables represent nonzero real numbers. 52
-
Do you think all edible items sold in a grocery store should have an ingredient and nutrition label? Consider the perspectives of consumers, the manufacturer, and the store.
-
Knowing history and evolution of the corporate social responsibility concept and investigating how a companys purpose or mission can integrate social objectives with economic and legal objectives.
-
Akur and Aifiti share profits on a 45:55 basis respectively. On 1 July 2025 the equity accounts were as follows. The partners were entitled to 8% interest on capital. Aifiti ran the business and...
-
The new owners of Bluegrass Natural Foods, Inc., have hired you to help them diagnose and cure problems that the company has had in maintaining adequate liquidity. As a first step, you perform a...
-
A 45-year-old man presents to the Emergency Department with a fever, widespread rash, and confusion. His only past history of note was Sydenham's chorea and a number of recent dental extractions....
-
Bartman Industries' and Reynolds Inc.'s stock prices and dividends, along with the Winslow 5000 Index, are shown here for the period 2006-2011. The Winslow 5000 data are adjusted to include...
-
Write a program that requests the name of a U.N. member country as input, and then displays information about the country as shown in Figure 1 below. Use the pickled binary file nationsDict.dat and...
-
Trying to decide whether to keep money in a savings account or in a mutual fund. Explain whether you would keep your money in a savings account or in a mutual fund. Explain why you would choose a...
-
At January 1, 2021: Paris Company paid $280,000 for a 80% interest in Shallby Comp In this moment Shallby's Stockholders' Equity consisted: $150,000 $50,000 - Capital Stock - Retained Earnings Book...
-
In March 31, 2016, HHS-Operated Risk Adjustment Methodology Meeting Discussion Paper (March 24, 2016) discussed the concept of varying cost-sharing levels. In the HHS-HCC risk adjustment model,...
-
2.1) Assuming a uniform expansion of the universe, the Cosmic Microwave Background (CMB) radiation has cooled down to approximately 2.7 Kelvin. If we consider the original temperature of the CMB to...
-
You are an alpaca farmer and would like to hedge the risk you face due to alpaca wool price fluctuations. Unfortunately, there are no alpaca wool futures contracts. You have noted that the...
-
Cullumber Company at December 31 has cash $20,200, noncash assets $106,000, liabilities $55,800, and the following capital balances: Floyd $46,200 and DeWitt $24,200. The firm is liquidated, and...
-
Grace is training to be an airplane pilot and must complete five days of flying training in October with at least one day of rest between trainings. How many ways can Grace schedule her flying...
-
You are trying to decide which of two automobiles to buy. The first is American-made, costs $28,500, and has a rated gasoline mileage of 28 miles/gal. The second car is of European manufacture, costs...
-
The wastewater treatment plant at the Ossabaw Paper Company paper mill generates about 24 tonnes of sludge per day. The consistency of the sludge is 35%, meaning that the sludge contains 35 wt%...
-
In modeling the effect of an impurity on crystal growth, the following equation was derived: where C is impurity concentration, G L is a limiting growth rate, G 0 is the growth rate of the crystal...
-
Figure P19.5 shows an existing design of a process plant, containing two exothermic processes. These require streams of reactants as shown in the diagram, and produce products at the temperatures...
-
Recalculate the problem in P19.5 using a \(\Delta T_{\min }=10{ }^{\circ} \mathrm{C}\). Comment on the effect of reducing the minimum temperature difference. [ (a) \(T_{\mathrm{C}_{\text {pinch...
-
A network for a process plant is shown in Fig P19.7. (a) Calculate the energy targets for \(\Delta T_{\min }=10{ }^{\circ} \mathrm{C}\) and show a design that achieves these targets. (b) Explain why...
Study smarter with the SolutionInn App