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A solution was prepared by dissolving 0.02 moles of formic acid (HCOOH; pKa = 3.74) in water to give 1 liter of solution. What is the pH of the solution? (Hint: ICE table)
To this solution was added 16 mL of 0.5 M NaOH. What is the resulting pH of the solution?
An additional 0.012 moles of NaOH were then added. What is the pH of the solution?
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Peptide A: AFEQHSR Calculate the isoelectric point of Peptide A using the pKa values in Table 4-1 of Voet, Voet and Pratt. Assume that the pKa values for the N-terminal amino group and C-terminal carboxyl groups are 8.0 and 3.5.
1. Briefly describe the principles behind the Bradford protein assay, describing the weaknesses andstrengths.2. What were the differences seen between the two analysis methods (paper vs. excel) and thecurve from the De-Novix DX-11+ instrument.
Insulin binding to an insulin receptor of a cell stimulates tyrosine kinase activity. However, uncontrollably high number of insulin-insulin receptor binding causes negative impacts on cellular viability. A researcher developed a new ligand X that can act as a scavenger of the insulin by binding to an insulin receptor. Researchers
Label the components of this diagram of the fluid mosaic model of membrane structure. Indicate the regions that are hydrophobic and hydrophilic. Where in this transmembrane protein would you expect to find mainly hydrophilic amino acids?A. a only D. a and cB. b only E. a, b, and c C.
Lab 9: CARBOXYLIC ACIDS, ESTERS, AND AMINES This is an online lab activity: you will not use your Lab Kit for Lab 9 Learning Outcomes for this Lab Experiment: 口 Demonstrate how to prepare a carboxylate salt from a carboxylic acid Demonstrate how to prepare an ester Demonstrate how to
Lab 9: CARBOXYLIC ACIDS, ESTERS, AND AMINES This is an online lab activity: you will not use your Lab Kit for Lab 9 Learning Outcomes for this Lab Experiment: 口 Demonstrate how to prepare a carboxylate salt from a carboxylic acid Demonstrate how to prepare an ester Demonstrate how to
An unknown carbohydrate gave a red precipitate when tested withBenedict’s reagent and quickly gave a red precipitate when reacted with Barfoed’s reagent. What conclusions can be made about this carbohydrate?
Draw and label a tripeptideDraw and label a pentapeptide For each, draw the chemical structure. Label each amino acid with the full name, 3-letter, and 1-letter abbreviation. Label R groups, N-terminus, C-terminus, peptide bond, carboxy group, amino group, etc. Which oligopeptides? Use the first letter of your last name
Answer the following 1.Please describe the difference between ventilation and respiration: 2. Please list the steps of ventilation from the nares to the site of gas exchange in the lungs: 1. 2. 3. 4. 5. 6. 7 8. 9. 10 11 12 13. 3. Please name and describe
The Primary Structure of Proteins 1. What is the primary structure of a protein?2. Explain the relationship between the primary structure of a protein and the gene for that protein.3. What type of bond joins the amino acids to one another in the primary structure of a protein? The Secondary
Part A: Compare and Contrast Prokaryotic and Eukaryotic Cells Note: Compare means to provide similarities and contrast means to provide differences. 1. list at least three similarities and four differences. 2. If you state a difference for prokaryotes, you must give me how the eukaryotes differ for that specific
1. Define and give examples of populations that exhibit the following dispersion patterns: clumped random uniform 2. Students sampled aquatic insect larvae living on a small section of river bottom measuring 2.0 m by 0.8m. They found approximately 45 000 black fly larvae in their sample. what was the population
What defines an essential amino acid and an essential fatty acid? Define polymer and monomer. Using this information, fill in the following blank: Proteins are biological polymers made of _______ _______ monomers. Would you eat whole insects? Would you eat a protein powder made from insects?
a/ Certain molecules, such as cyanide, can bind to cytochrome c oxidase. In fact, this is the actual chemical basis of cyanide poisoning. When this happens, cytochrome c oxidase no longer works. What happens to the pH of the intermembrane space when this happens? To the production of ATP? Explain
Consider the following precipitation reaction: 2 Na3PO4 (aq) + 3CuCl2 (aq) -> Cu3(PO4)2(s) + 6NaCl(aq) What volume of a 0.189 mol L^-1 Na3PO4 solution is necessary to completely react with 87.6mL of 0.106mol L^-1 CuCl2? Round your answer using three significant digits.
Recombinant DNA Technology 01. What is an episome. What are plasmids. – What are the natural function of a bacterial plasmid – What is the difference between a plasmid and a virus (phage) – What is conjugation. How
2. Un avión que viaja a velocidad constante comienza a caer en picada moviéndose en un arco de radio de 5.20 km. ¿Cuál es la aceleración del avión en G? 3. Se ejerce una fuerza horizontal de 310 N sobre una bola de 2.0 kg a medida que gira
Coriolis Effect Activity How does Earth’s rotation affect wind? If the earth was not spinning, the wind would always blow straight from the south in the Southern Hemisphere, and from the north in the Northern Hemisphere pushing the surface ocean currents straight as well. However, the earth DOES spin (rotate). This turning of the earth
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