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- What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to produce a buffer solution with a pH of 4.00? Ka = 1.47 x 10-4. Please indicate the full solutions.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:Tirofiban (C22H36N₂O5S MWt = 440.6) is present as tirofiban HCI monohydrate MWt=495.1) at 0.281 mg/mL in a concentrated solution. (C22H36N2O5S.HCI.H₂O A solution for infusion is prepared by extracting 50 mL from a 250 mL bag of 5% glucose s and adding 50 mL of concentrated solution. Sonya who weighs weighs 60 kg requires a tirofiban dose of 0.4 mcg/kg/min for 30 minute- What volume would remain after 30 minutes? Answer: 94.53 mL X The correct answer is: 236 mL
- . An acetate/acetic acid (pKa=4.75) buffer of 500 mL includes 0.1 mol of acetate and 0.5 mol of acetic acid. 2.0 M NaOH was added to the buffer to get the pH to 4.70. What volume of NaOH was added to the system?10 tab of acetaminophen 500 mg molar absorptivity= 14520 @ 243nm. The total weight of the 10tab is 5278 mg. I take a sample equivalent to 100mg of tablet and I diluted it in 100mL, I took an aliquot of 10mL and I diluted it in 250mL, of these I took 25mL and I diluted them in 250mL. Calculate the weight per tablet. Absorbance = 0.944NaOH.2L X.02mol/L = .004 mol, H3PO4.8L X.15 mol/L = .12 mol H₂PO4 HPO4² + H+ .108 mol start A. If 200 mls of 0.02 M NaoH is added to 800 mls of 0.15 M phosphoric acid buffer at pH 8.2, what is the resultant pH? (pK1 = 2.1, Pk2=7.2, pk3=12.2) add .004 mol OH- end .012mol -.004 .008 mol pH= pka + log [A-]/[HA] = 7.2 + log.112/.008 +.004 .112mol pH=8.35 B. If the same amount of NaOH in part A is added to 800 mls of water, what is the resulting pH? .004mol/1L =.004 [OH-] pOH = 2.4, pH -11.6
- Tirofiban (C22H36N2O5S MWt = 440.6) is present as tirofiban HCI monohydrate MWt=495.1) at 0.281 mg/mL in a concentrated solution. (C22H36N2O5S.HCI.H₂O 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.)gnment.doc?_&d x True and False Assignment.doX true or false Any condition tha x content/enforced/21069983-BL_SCI_SNC2D1-7A_993734_2122Sem3/Activity3%20Assignm BIU A - A - 2. Identify the following bonds as ionic or covalent. a) NaF b) MgCl2 c) C6H1206 d) NO2 e) CaF2 f) LiF 3. Complete the following table. Electron transfer Lewis diagram Atoms to be bonded Li & CI !!!Blood pH is maintained at a range of 7.4. The following set of equations representsthe reactions of the blood buffering system. The pk, for the dissociation ofH,COg into HOg and H* is 6.3.Carbonic AnhydraseCO2 + H2OH2CO3> HCO3- + H+(a) (Calculate the ratio [HCO3 ]/[H,COg] at physiological pH. Show work.(b)) An individual with diabetes presented at an urgent care with fatigue andnausea. Lab tests showed that their blood [HOg ]/[H,COg] ratio was 3.4. Whatwas the pH of the patient's blood? Show work.(c) ) Clinic staff also noticed that the patient was breathing rapidly. What isthe reason for this rapid breathing and how might it help alleviate the patient'scondition?
- amino glycine pka is 2.4, 9.8 Calculate the most effective buffering range. if there is two pka, since there are 2 buffer region, is the buffering range 1.4~3.4 and 8.8~10.8? i would like to know the correct answer and detailed solution/reason.80mL of a 0.3M solution of hexapeptide Leu-His-Cys-Glu-Asn-Arg is adjusted to pH=pI. The solution is then titrated with 0.2M HCL to a final pH of 2.1. Sketch the titration curve, labelling the pH and volume axes. Indicate the volume of HCL needed to reach relevant pKa value and equivalence point(s)z Relevant pKa values are: 2.1, 4.3, 6.0, 8.3, 9.8, and 12.5.A buffer contains 0.015 mol of lactic acid (pK₁ = 3.86) and 0.080 mol of sodium lactate per liter. H₂C OH Lactic acid OH Calculate the pH of the buffer. H₂C. Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of the buffer. O OH Sodium lactate Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of pure water. O Na+ buffer pH: buffer pH change: water pH change: units units