straw? 7. Acid-Base Lab. When conducting the Acid-Base lab, why did we hypoventilate before blowing into the What were we trying to assess with this portion of the experiment? Be sure to include an equation with your answer! 8. Chemical Digestion Simulation- When reviewing protein digestion in our chemical digestion simulation lab, why did you prepare test tube 3? What were you trying to show with this portion of the experiment? Please relate your answer to the review questions

straw? 7. Acid-Base Lab. When conducting the Acid-Base lab, why did we hypoventilate before blowing into the What were we trying to assess with this portion of the experiment? Be sure to include an equation with your answer! 8. Chemical Digestion Simulation- When reviewing protein digestion in our chemical digestion simulation lab, why did you prepare test tube 3? What were you trying to show with this portion of the experiment? Please relate your answer to the review questions

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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Complete the table below regarding the different laboratory tests done for Amino Acids and Proteins Positive Results/ Observations Positive for (provide details like functional group responsible) List Down Samples that will yield positive result* Procedure (Chemical Reagents Added) (ex: color of solution, precipitate formation, etc) Tests Biuret Test Ninhydrin Xanthoproteic Millon's Sakaguchi Hopkin's Cole Lead Acetate Br, in water Nitroprusside Reaction Pauly's Test Folin-Coicalteau's Test *Samples to consider: All the Standard Amino Acids Albumin Casein
Part B: Miscibility of liquids 1. Place 10 drops of propan-2-ol into each of two DRY semi-micro test tubes. 2. Add 10 drops of water to one test tube and 10 drops of cyclohexane to the other test tube, shake and observe whether the two liquids in each test tube are miscible. Record your results then discard the contents of the test tubes into the organic waste container. 3. Place 10 drops of water in a clean semi–micro test tube and add 10 drops of cyclohexane to it. Record whether the two liquids are miscible. If two layers form (i.e. the liquids are immiscible) add a drop of blue food dye to the mixture and shake, then allow the two layers to reform. Based on your observation, decide whether the food dye is more soluble in water or cyclohexane and then discard the mixture into the non–halogenated waste container. Record whether the combinations of liquids shown below are miscible. Water Cyclohexane Propan-2-ol Cyclohexane
What common result occurred in all of the following experimental tubes? Why? a. a mixture of hot water and egg white b. a mixture of salt and egg white c. a mixture of baking soda and egg white d. a mixture of lemon juice and egg white e. a mixture of ethyl alcohol and egg white
1. Fill In the blank with the correct terms. a. Term for elemental cations that act as enzymatic cofactors. Tem for small organic molecules that act as enzymatic cofactors b. C. Part of the enzyme were chemical reactions occur. An enzyme that has multiple sites, some for reactions and others for reaction feedback control. Enzymes that are rather aggressive, and turned "off" by a protein segment untl they are activated. N a earch hp d. ai
I. Discuss the chemical basis of the positive and negative results of the chemical tests performed in Modified Furter-Meyer Test and Salkowsky Test 2. What type of lipid are the samples as indicated by the results? 3. Explain why oils become rancid. CONCLUSION
. Given the following drugs in a urine specimen: Cocaine alkaloid Secobarbital (a derivative of barbituric acid) Carisoprodol (a neutral drug) Devise an analytical flow chart that will be used to separate these substances from a urine specimen. The separation will be liquid extraction methods. Choose appropriate solvents and reagents based on the properties of the materials to be separated.
In one procedure it says, "Pour the organic layer into a clean, dry 50-mL Erlenmeyer flask, add 2 g of calcium chloride..." What is the purpose of the calcium chloride?
6. Test for Sulfur Color of lead acetate solution: Color of original Color after lead Sample Color after NaOH solution acetate glutamic acid cysteine casein albumin 7. Sakaguchi Test Color of alpha-napthol solution: Color of original solution Color after NaOH/ Color after Sample alpha-napthol hypochlorite/urea arginine glutamic acid casein albumin C. Coaqulation of Proteins Observation fresh egg albumin egg albumin after heating egg albumin + nitric acid egg albumin + ethyl alcohol D. Precipitation by Heavy Metals Observation fresh egg albumin egg albumin + lead acetate egg albumin + mercury (1I) chloride egg albumin + silver nitrate
Making Solutions Practice Problems Part I. For each of the following four questions: calculate and describe how the requested solution would be made. Please show all of vour calculations, In all cases the diluent or solvent will be water. Also, assume the smallest volume you can accurafely pipette is Ipl. (CaCly: Molecular weight - 111.0 - NaCI: Molecular weight-58.44)
9. Any organic solvent waste generated in this experiment should be collected in your fume hood and poured into the waste container as directed. This waste should not be poured down the drain. True False
Why is the glucose assay one of the most common analytical test performed in clinical chemistry.
Separation of Amino Acids by Thin Layer Chromatography Lab Questions. Please see photos and answer the questions relating to the images from #10. Thank you!