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- Sketch a plot of the fraction of species, f, vs pH for Tyr. Show your calculations for several points on the plot. You want to calculate the fraction of the species for more than 3 of the points. pKa’s for Tyr is 2.24, 9.04, and 10.10.For water having a total alkalinity of 1.00x10^-3 mol/L and a pH of 10.34 what is the percentage contribution to alkalinity from CO32-? Please answer very soon will give rating surelyThe acid- dissociated constant at 25.0 degres celcius for hypochlorous acid (HCIO) is 3.0x10-8. At equilibrium, the molarity of H3O+ in a 0.066M solution of HCIO is?
- The acid-dissociation constant at 25.0°C for hypochlorous acid (HClO) is 3.0 × 10-8. At equilibrium, the molarity of H3O+ in a 0.010 M solution of HClO isThe salt K2HPO4 (potassium hydrogen phosphate) is a strong electrolyte but not a strong acid or base. Consider an F = 0.010 M solution of K2HPO4. a) Add the acid/base behavior of hydrogen phosphate by writing a “sequential dissociation scheme” for phosphoric acid (H3PO4). Then write mass balance equations for total phosphate and total potassium and give their numerical values. b) Write the charge balance equation for this solution. How may total species are there? [Count species in the charge balance equation and add any neutrals.] How many additional equations are needed for systematic treatment of equilibrium? Name them (give their usual symbols) c) Consider the KHPO4−(aq) ion pair. This is a new species, so what additional equation would you need? Tell how you would alter each charge or mass balance equation (if necessary) to include this species.A biochemical reaction takes place in a 1.00 ml solution of 0.0250 Mphosphate buffer initially at pH = 7.20 (as shown for pKas of phosphatespecies).(a) Are the concentrations of any of the four possible phosphate speciesnegligible? If so, identify them and explain your answer.(b) During the reaction, 3.80 μmol of HCl are produced. Calculate the finalpH of the reaction solution. Assume that the HCl is completely neutralizedby the buffer.
- Phosphoric acid, H3PO4, exists in solution in equilibrium withH2PO4- , HPO42-, and PO4-3. Write expressions for the fractional compositions of these four species.Bar Keepers Friend is a household cleaner containing oxalic acid, a diprotic acid where pKa1 = 1.27 and pKa2 = 4.27. If the molarity of oxalic acid in one bottle of Bar Keepers Friend is 0.458 M, explain how you would determine the fractional composition of the charge state [H2A] at pH = 3.98? Write out exactly how you would solve the problem (including plugging in the appropriate numerical values to solve the problem without actually calculating the final answer).Give only typing answer with explanation and conclusion to all parts Calculate the concentrations of all species in a 0.490 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are ?a1=1.4×10−2 and ?a2=6.3×10−8. [Na+]= [HSO−3]= [OH−]= [SO2-3]= [H2SO3]= [H+]=