ANALYTICAL CHEMISTRY MIDTERM ASSIGNMENT NO. 3 (BY GROUP) A. Identify the acid (acidl) on the left side and conjugate base (basel) on the right side. (a) HOCI + H,O H,0* + OCI (b) HONH2 + H0 HONH + OH (c) NH + H,0=NH3 + H;O* (d) 2HCO, =H,CO, + CO (e) PO + H,PO,=2HPO} B. Identify the base (base2) on the left side and conjugate acid ( acid2) on the right side. (a) HOCI + H,0=H,0* + OCI (b) HONH2 + H,0 HONH + OH- (c) NH + H,0=NH3 + H;O* (d) 2HCO, =H,CO, + CO (e) PO + H,PO, =2HPO}- C. Calculations: 1. What is the concentration of hydronium ion in a 0.100 M solution of HCl?

Can you please question 14.54 and all of the sub problems and show all of the steps to the solution

2. The following elimination will not give the desired alkene product. Identify the mistake(s) in the proposed reaction and correct it by writing a new reaction. KO'Bu, DMSQ + КОН ОН

Question 46 of 50 Submit Write the formula of the conjugate base of the Brønsted-Lowry acid, CH,CH,COOH | 2- Reset > 1 3 4 6 8 ) + (s) (1) (g) (aq) C • » H,0 II

Even though both NH3 and C6H5NH2 are weak bases, NH3 is a much stronger acid than C6H5NH2. Which of the following is correct at equilibrium for a solution that is initially 0.10 M in NH3 and 0.10 M in C6H5NH2?(a) [OH−] = [NH4+](b) [NH4+] = [C6 H5 NH3+](c) [OH−] = [C6 H5 NH3+](d) [NH3] = [C6H5NH2](e) both a and b are correct

Complete the balanced chemical equation for the following reaction between a weak acid and a strong base. CH:NH:CI(aq) + NaOH(aq) 4- 2+ | ]3+ 1 3 4 6 7 8 D4 15 Do ) (s) (1) (g) (aq) Na H C CI Reset • x H2O Delete 1L 2. +

33. Which set represents a conjugate acid/base pair? (A) H₂PO. and HPO (C) H₂PO and H₂PO 34. For the reaction: NH:(aq) +N_Hs (aq) = NH(aq) +NzH, (aq) Which statement is true? (B) H₂PO and H₂PO, (D) H3PO, and Na3PO4 (A) N₂Hs (aq) is a Brønsted-Lowry acid and a Lewis acid. Brønsted-Lowry acid and a Lewis Brønsted-Lowry base and a Lewis (D) N₂Hs (aq) is a Brønsted-Lowry base and a Lewis base. (B) N₂H, (aq) is a base. (C) N₂H, (aq) is a acid.

You need a 30% alcohol solution. On hand, you have a 120 mL of a 15% alcohol mixture. You also have 40% alcohol mixture, How much of the 40% mixture will you need to add to obtain the desired solution? You will need mL of the 40% solution

Chemists use a number denoted by pH to describe quantitatively the acidity or basicity of solutions. Bydefinition, pH = - log [H+], where [H+] is the hydrogen ion concentration in moles per liter.

Calculate the pH of 0.045 C5H5N (Pyridine) K_b= 1.7 x 10^-9 for C5H5N