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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 HA(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: AThe pKa of Cl3CCO2H is 0.64. What is the pH of a 0.580 M solution? What percentage of the Cl3CCO2H is dissociated?
- 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?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=(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?
- 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?CH3 KMnO4 Acid ? [A]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