OBSERVATIONS:1.LipidsMost fat and oil can be saponified. What is soap?2. a) How do the two products (from the experiment and the commercial product) compare as tosudsing properties?b) Give the pH of your soap and the commercial soap:Synthesized soap:3. What was formed in the test tube?Synthesized soap:Commercial soap:Detergent:Commercial soap:4. What was the difference before and after adding Na2CO3?a) Vegetable Oil:Detergent:b) Cottonseed Oil:c) What do we have in the body that emulsifies the lipids, changing them to micro-droplets?5.What is the result?6What is the reaction with mineral acid in soap?

1. What is soap?Soap is a salt of a fatty acid. It is produced through a process called…

Answered: OBSERVATIONS: 1. Lipids Most fat and…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Chemistry H,N. CH, H,N. HO, но Phenylalanine (1) Tyrosine (2) H,C HN CH, H,C `CH, H,C но Triethylamine (4) N-acetyl-OMe-Tyrosine (3) All four compounds are dissolved in ethyl acetate. If you started by extracting the solution with 1 M HCI, which of the following compounds would end up in the aqueous layer? 4 12 Instead, you decide to start by extracting the ethyl acetate solution with 5% NaHCO3 (sodium bicarbonate). What will remain in the organic layer? 1 2 4
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* CO 个 SI x Nie OMetabolism nutrition 2-25.pptx M Inbox (103)- elaine.mirandapere X 101 Chem101 + x 01edu.co Question 9 of 11 Which one of the following 1.0 M solutions would have the lowest pH? Weak Base Kb 1.7 x 10-9 A) C;H;N N°H°O HONH2 1.1 x 10-8 B) HONH, 4.3 x 10-10 C) CH;NH2 H,NNH2 1.3 x 10-6 D) H,NNH, IIO 23 %24 4. 8. 6. f O
Given: Concentration, Volume, Temperature (20C) Calculated: Molarity, Concentration of OH- and Ca2+ What is the information needed to know if Ksp will increase or decrease with temperature? What is the effect on Ksp when temperature is increased?
Given the Ka values: Formic acid, Ka = 1.8x10-4; acetic acid, Ka=1.8x10-5; hypochlorous acid, Ka = 4.0x10-⁹; benzoic acid, Ka = 6.3x10-5 The titration application with a standard strong base will be most feasible with A. Acetic acid B. Formic acid C. Benzoic acid D. Hypochlorous acid
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Draw the titration curve for serine and glutamic acid, starting at pH1, going to 14 andadding equivalents of base
Procedure of experimental Test for carbonate ion (CO32-) Add 1 mL of 1M Na2CO3 (or your unknown) and 1 mL of 6M HCl to a small test tube. C. Test for sulfate ion (SO42-) Add 1 mL of 0.5 M Na2SO4 (or your unknown) and 1 mL of 6 M HCl to a small test tube. Next add a few drops of 1 M BaCl2. D. Test for phosphate ion (PO4 3-) Add 1 mL of 0.5 M Na2HPO4 (or your unknown) and 1 mL of 6 M HNO3 to a small test tube. Next add a 1 mL of 0.5 M (NH4)2MoO4 and stir thoroughly. Place the test tube in the hot water bath and continue to stir. E. Test for thiocyanate ion, (SCN-) Add 1 mL of 0.5 M KSCN (or your unknown) and 1 mL of 6 M acetic acid (HC2H3O2) to a small test tube. Now add 2 drops of 0.1 M Fe (NO3)3. A dark red solution indicates the presence of SCN-. F. Test for chloride ion, (Cl2-) Add 1 mL of 0.5 M NaCl (or your unknown) and 1 mL of 6 M HNO3 to a small test tube. Next add 2 to 3 drops of 0.1 M AgNO3. G. Test for nitrate ion, (NO3 –) Add 1 mL of 0.5…
Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by completions of the statement. Select the one lettered answer or completion that is best in each case. Write your answer before each number. 39. Indicators are complex organic compounds used: I. to determine the equivalence points in neutralization processes II. to determine the hydrogen-ion concentration III. to indicate that a desired cchange in pH has been effected a. I d. II, III b. I, II e. I, II, III C. I, III 40. Requirement for blank titration: 1. Analyte II. Titrant III. Indicator IV. Solvent 41. The most effective way to clean glass apparatus: a. Soaking in detergent C. Treatment with a solution of sodium chromate in sulfuric acid b. Acetic acid d. Rinsing with nitric acid N
Calculate the isoionic and isoelectric pH of 0.01111 M methionine. Enter your answers to the hundredths place. isoionic pH = 1 X100 TOOLS x10⁰ isoelectric pH = 2.089 x10-6 Amino Acid Asparagine Glutamine Isoleucine Leucine Methionine Phenylalanine Proline Serine Tryptophan Valine. pKal 2.16 2.19 2.318 2.328 2.18 2.20 1.952 2.187 2.37 2.286 pK₂2 8.73 9.00 9.758 9.744 9.08 9.31 10.640 9.209 9.33 9.719
Determine the statements if it is positive or negative base on the chemical structure in the picture. Change of litmus paper from red to blue (if soda lime id added to drug sample) Change of litmus paper from blue to red Production of moist at the edge of the test tube then heated Green flame with Beilstein’s test White precipitate with silver nitrate Black residue due to incomplete combustion White precipitate with BaCl2 solution Yellow precipitate with ammonium molybdate Red precipitate with Millon’s Reagent Violet color with FeCl3 Solution
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