12. If strong-base anion exchange resin is applied to treatraw water with silicate, the pH of raw water should beA. acidicB. neutralc. basicD. no demanding13 In electrodialysis process with polarization, foulinglayer occurs in theA. concentrate chamber; anionB. concentrate chamber; cationc. dilute chamber; anionD. dilute chamber; cationside ofmembrane.

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Answered: 12 If strong-base anion exchange resin…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Please help me solve activity 3, 1,2,3.
3 You have an available vile of flagyl at the concentration of 250 mg/5 mL. The manufacture says the recommended loading dosage is 15 mg/kg IV, not to exceed 4g/day and the recommended maintenance dose is 7.5 mg/kg IV over 1 hour for 7-10 days. The doctor orders 600 mg flagyl every 24 hours for a 70-kg adult with an anaerobic bacterial infection. Is this dosage safe for this individual?
i need the answer quickly
6. From the titration curve at the right, determine a. If the acids/bases are strong or weak b. Whether the acid or base was added from the buret c. The volume required to reach the equivalence 13 11 9 pH 7 5 3 1 5 10 15 20 d. The pH of the equivalence point e. The region where buffering occurs f. The volume and pH at the half equivalence point g. The K of the base used Volume added (mL) 25 25 h. The region where the [B]: [BH+] ratio is greater than 1 i. The region where the [B]: [BH+] ratio is less than 1 j. The concentration of acid if the titration started with 50.0 mL of 0.050 M base. k. Suggest a good indicator to use for this titration and explain why.
7. Compare the paired concentrations below (given in terms of Molarity (moles/liter), where mM is millimolar and μM is micromolar) and determine which of the values have the higher concentration. a. 0.005M vs. 5,000 mM b. 300mM vs. 3000 μM c. 1M vs. 100,000 μM
3. Ms. Roselli brings in the following prescription for her són Joey. swallow tablets, she asks you to fill the prescription with a liquid form. You have aman- tadine syrup 50 mg/5 mL in stock. (Note: 1 tsp = 5 mL. Equivalencies are available in the resources section of the Course Navigator.) R amantadine 100 mg PO bid × 3 days a. How milliliters in one dose? many are b. How many teaspoonsful are in one dose? c. How will the instructions read on the medication container label? d. How many milliliters will you dispense?
D10 Discuss some potential consequences for a patient using an unstable emulsion containing a hydrophobic drug
7. Which of the following is a valid buffer? A. 0.30 M HNO; and 0.30 M NaNO, B. 0.20 M HF and 0.10 M KF C. 0.15 M NaOCN and 0.15 M KCN D. 0.15 M HBr and 0.25 M NaBr
11. On the basis of the indicator test for starch what must have happened to the iodine molecules that were originally only in the water in the large test tube?
10. The current recommendation for the dose of amoxicillin used in the treatment of otitis media (middle ear infection) in children weighing less than 40 pounds is 90mg/kg/day administered in 3 equally divided doses. How many milliliters of Amoxil suspension 400mg/5ml should be dispensed to the patient to complete a 10-day course of therapy if the child weighs 22 pounds?
4. TLC is still useful in the lab but is being replaced by automated chromatographic methods. For example, TLC, FPLC, and HPLC are now automated processes, and computers can control various parameters, such as flow rate, blends of solvent mixtures, etc. Can you think of how the ability to manipulate the parameters of these automated chromatographic methods (sample size, column plate length, flow rate, solvent gradients, etc.) might accentuate or improve an investigator's ability to separate amino acids or other biomolecules?
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