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Topic: Reactions of aromatic compounds
Draw a stepwise mechanism for the following reactions
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- Abuler coAirs the weak acia HA ad is conugate base A. The weak acid has a pK, of 4.36 and the buffler has a pH of 4.92. Part A Which statemeant is true of the relative concentrations of the wweak acid and coniugate base in the bufter? O [HA| = |A"| O [HA| LA | Submit Request Answor Part B Which buffer component wauld you acid to change the pH vi the butfer ta 4.72? O HAThe pKa of Cl3CCO2H is 0.64. What is the pH of a 0.580 M solution? What percentage of the Cl3CCO2H is dissociated?(ag) B: What is the pH of 0.6 M NH.CI solution? Discuss your results. (K, of NH= 1.8 x 10) NH, + H2O+ H;O* +NH3 02: A
- Addition of phenolphthalein to an unknown colorlesssolution does not cause a color change. The addition ofbromthymol blue to the same solution leads to a yellowcolor. (a) Is the solution acidic, neutral, or basic? (b) Whichof the following can you establish about the solution: (i) Aminimum pH, (ii) A maximum pH, or (iii) A specific rangeof pH values? (c) What other indicator or indicators wouldyou want to use to determine the pH of the solution moreprecisely?(a) Wr ite an equat ion for the react ion in whichH2C6H7O5-(aq) acts as a base in H2O(l). (b) Write an equationfor the reaction in which H2C6H7O5-(aq) acts as an acidin H2O(l). (c) What is the conjugate acid of H2C6H7O5-(aq)?What is its conjugate base?Which substance is a weak Brønsted-Lowry acid in aqueous solution? Select one: a. CH;OCH; b. CH;OH C. CH;NH2 d. CH;COOCH; e. CH;COOH
- The normal pH of blood is 7.40 ± 0.05 and is controlled in part by a H2CO3/HCO3 2 buffer system.(a) Assuming that the Ka value for carbonic acid at 25°C applies toblood, what is the [H2CO3]/[HCO3-] ratio in normal blood?(b) In a condition called acidosis, the blood is too acidic. What isthe [H2CO3]/[HCO3-] ratio in a patient whose blood pH is 7.20?What is the equation for the reaction of AL(s) and 6MHCl(aq)?MTWT FSS Date:.. Provide to suitable the www Pz Patta) Explanahon while considering statement, the chemical much Ahan medhyl mexceptan diomegnade Pažemagneticz concept bonding. methand fpiling has Point higher that why? PalHb) Why N is and O is help Paltle) of moe with the SHAB Stable which end why 2- ILAgFe] 0x LAgla 3- 11. COF:73=