OH dow Benzoin + Na* Sodium Hypochlorite UMO + NaCl + H2O H H Benzil Sodium Chloride
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- Define the following:- pH- Buffer- pKaShown below is the titration curve for phosphoric acid. At what pH is the solution entirely in the H3PO4 form? 0-0.5 14 12.5 O2.1 NICHConsider the following pH titration curve of a diprotic acid. What is the approximate values for pka 1 and pka 2? the curve is attached below.
- Write out the acid dissociation reaction for hydrochloric acid. Calculate the pH of a solution prepared by diluting 3 ml of 0.5 M HCl to a final volume of 100 ml with H2Owhat are two similarities and differences between sodium and potassium and between sodium and cloride. Explain the answerA glucosamine solution of unknown concentration was diluted as follows: 1 mL of the solution was diluted to 5.0 mL. A 0.3 mL aliquot of this solution was diluted with 0.7 mL of water; the absorbance of this was measured and found to be 0.440 (uncorrected, must subtract blank). What is the concentration of the original undiluted glucosamine hydrochloride solution in µmol/mL? Given: Corrected absorbance = 0.395 y= 1.165x+0.055 Standard equation
- A 25 year old male patient requires a 5 mL injection of sodium valproate 200 mg/mL. The displacement volume for sodium valproate is 0.56 mL/g. What volume of water for injections in millilitres should be added to the patient’s dose of sodium valproate for it to be correctly reconstituted? State your answer to 2 decimal places. units= mlWhich of the following combinations would be the best choice to buffer the pH of a solution at approximately 7? Ionization Constants for Aqueous Weak Acids at 25 °C Acid K. (pK,) Conjugate Base Hydrogen phthalate ion, Cg H4(CO2H)(CO2) Acetic acid, CH3 CO,H Acetate ion, CH; CO2- 1.8 x 10-5 (4.74) Weak Acid Phthalic acid, C6 H4 (CO,H)2 1.3 x 10-3 (2.89) Dihydrogen phosphate Hydrogen phosphate ion, H2 PO4 Hydrogen phosphate ion, HPO42 6.2 x 10-8 (7.21) ion, HPO,2- Phosphate ion, PO,* 3.6 x 10-13 (12.44) O Na, HPO4 and NagPO4 O NaH2 PO4 and NazHPO4 O H;PO4 and NaH2 PO4Give full explanation The physcian orders ascorbic acid 0.25mg IM for your patient admitted with an alcohol problem. You have ascorbic acid 500mg/mL. How many milliliters will you administer?
