Will a red blood cell undergo crenation, lysis, or no change in each of the following solutions? a. 10% (m/v) NaCl b. distilled water c. 5% (m/v) NaCl d. 5% (m/v) glucose binati se flous
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- A 0.0284 M aqueous solution of lactic acid, HC3H5O3, a substance that accumulates in the blood and muscles during physical activity, is found to be 6.7% ionized. Determine the value of Ka for lactic acid.6.1 A physician asked you to recommend a loading dose and a constant rate IV infusion of a drug to rapidly achieve a steady-state concentration of 15 mg/L. The half-life of this drug is 6 h and the volume of distribution is 30 L. What is your recommendation?19. 150 mCi of D2O is injected in your patient. 10% of D2O is excreted. The concentration of D2O in a plasma sample is found to be 0.4 mCi/100 ml. What is your patient' s Total Body Water in L? 20. the diffusion coefficient states that: A. the larger the molecular radius of the solute, the slower the rate of diffusion B. the more viscous the solution, the slower the rate of diffusion C. the smaller the molecular radius of the solute, the faster the rate of diffusion D. the more viscous the solution, the faster the rate of diffusion E. the larger the molecular radius of the solute, the faster the rate of diffusion 21 You are experimenting on diffusion rates in lab. Down the center of Beaker A is a semipermeable membrane. On one side of the membrane in Beaker A is a 100mM solution of CaCl2; on the other side is pure water.Down the center of Beaker B is a semipermeable membrane. On one side of the membrane in Beaker B is a 10mM solution…
- Quinine ( C20 H24 N2 O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug. For quinine, pK, = 5.1 and pK, = 9.7 ( pKp = – log Kp). Only 1 g quinine will dissolve in 1920.0 mL of solution. Calculate the pH of a saturated aqueous solution of quinine. Consider only the reaction | Q+ H2O= QH+ + OH- described by pK, where Q = quinine. pH =For an acid HA, the concentrations of HA and A are 0.075 and 0.025, respectively, at pH 6.0. What is the p K a value for HA?For in the solution part for c), do you mean 6.25%?
- What is the molarity of a NaOH solution if 48.0 mLneutralizes 35.0 mL of 0.144 M H2SO4?Creatinine, C4H7N3O, is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly reliable indicator of kidney function. The normal level of creatinine in the blood for adults is approximately 1.0 mg per deciliter (dL) of blood. If the density of blood is 1.025 g/mL, calculate the molarity of a normal creatinine level in a 10.0 mL blood sample.A researcher in Biochemistry is isolating angiotensin-converting enzyme (ACE) from rabbit lung tissue. The protocol requires the use of 500 mL of 0.215 M of phosphate buffer with pH of 7.45. How will he/she prepare this buffer from 2.00 M sodium dihydrogen phosphate and solid disodium hydrogen phosphate (MW = 142 g/mol) The Ka2 of phosphoric acid is 6.2 x 10-8.
- You have just used up the last of a 1.2 % m/m solution of agarose in water. You require another 100mls. How many grams of Agarose do you require? Note 1ml of water=1g What is the % w/v of a 100ml solution containing 5g of NaCl?Glutamic acid (1one of the 20 amino acids) has a side- chain carboxyl group (COOH, pKa = 4.3) as shown in Figures 4.7 and 4.8 a. Write the chemical equation for the dissociation of the side chain COOH. Label the weak acid and the conjugate base. b. The Henderson-Hasselbalch Equation (shown below) can be used to determine the ionization status of a weak acid: pH = pKa + log [base] Use the Henderson Hasselbalch equation to determine whether the glutamic acid side chain [acid] • carboxyl group is protonated or deprotonated at physiological pH.Tirofiban (C22H36N₂O5S MWt = 440.6) is present as tirofiban HCI monohydrate (C22H36N2O5S.HCI.H₂O MWt=495.1) at 0.281 mg/mL in a concentrated solution. A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose solution and adding 50 mL of concentrated solution. Sofia who weighs weighs 87 kg requires a tirofiban dose of 0.1 mcg/kg/min for 12 to 24 hours. What would the infusion rate be (mL/h)? (Answer to 1 decimal place.) Answer: