1
answer
0
watching
348
views
17 Nov 2019
Rank the following compounds from strongest to weakest acid: CH_3 CH_2 OH CH_3 CH_2 NH_2 CH_3 CH_2 SH CH_3 CH_2 CH_3 For each of the following compounds, draw the form that predominates at pH = 3, pH = 6, pH = 10, and pH = 14: a. CH_3 COOH pK_a = 4.8 b. CH_3 CH_2 NH_3 pK_a = 11.0 c. CF_3 CH_2 OH pK_a = 12.4 Given the products of the following acid-base reactions and indicate whether reactants or products are favored at equilibrium. (Use the pK_a values that are given in Section 2.3.) a. CH_3 COH + CH_3 O^- b. CH_3 CH_2 OH +^- NH_2 c. CH_3 COH + CH_3 COH + CH_3 NH_2 d. CH+_3 CH_2 OH + HCI a. Rank the following alcohols from strongest to weakest acid. b. Explain the relative acidities. CH_2-CHCVH_2 OH CH_3 CH_2 CH_2 OH HC=CCH_2 OH A single bond between two carbons with different hybridizations has a small dipole. What is the direction of the dipole in the indicated bonds? a. b. For each compound, indicate the atom that is most apt to be protonated. a. b. c. Given the K_a values, estimate the pK_a value of each of the following acids without using a calculate (that is, is it between 3 and 4, between 9 and 10, and so on?): 1. nitrous acid (HNO_2), K_a = 4.0 times 10^-4 2. nitric acid (HNO_3), K_a = 22 3. bicarbonate (HCO_3^-), K_a = 6.3 times 10^-11 4. hydrogen cyanide (HCN), K_a = 7.9 times 10^-10 5. formic acid (HCOOH), K_a = 2.0 times 10^-4 6. phosphoric acid (H_3 PO_4), K_a = 2.1 b. Determine the exact pK_a values, using a calculator. c. Which is the strongest acid? Tenormin, a member of the group of drugs known as beta-blockers, is used to treat high blood pressure and improve survival after a heart attack. It works by slowing down the heart to reduce its workload. Which atom in Tenormin is the most basic?
Rank the following compounds from strongest to weakest acid: CH_3 CH_2 OH CH_3 CH_2 NH_2 CH_3 CH_2 SH CH_3 CH_2 CH_3 For each of the following compounds, draw the form that predominates at pH = 3, pH = 6, pH = 10, and pH = 14: a. CH_3 COOH pK_a = 4.8 b. CH_3 CH_2 NH_3 pK_a = 11.0 c. CF_3 CH_2 OH pK_a = 12.4 Given the products of the following acid-base reactions and indicate whether reactants or products are favored at equilibrium. (Use the pK_a values that are given in Section 2.3.) a. CH_3 COH + CH_3 O^- b. CH_3 CH_2 OH +^- NH_2 c. CH_3 COH + CH_3 COH + CH_3 NH_2 d. CH+_3 CH_2 OH + HCI a. Rank the following alcohols from strongest to weakest acid. b. Explain the relative acidities. CH_2-CHCVH_2 OH CH_3 CH_2 CH_2 OH HC=CCH_2 OH A single bond between two carbons with different hybridizations has a small dipole. What is the direction of the dipole in the indicated bonds? a. b. For each compound, indicate the atom that is most apt to be protonated. a. b. c. Given the K_a values, estimate the pK_a value of each of the following acids without using a calculate (that is, is it between 3 and 4, between 9 and 10, and so on?): 1. nitrous acid (HNO_2), K_a = 4.0 times 10^-4 2. nitric acid (HNO_3), K_a = 22 3. bicarbonate (HCO_3^-), K_a = 6.3 times 10^-11 4. hydrogen cyanide (HCN), K_a = 7.9 times 10^-10 5. formic acid (HCOOH), K_a = 2.0 times 10^-4 6. phosphoric acid (H_3 PO_4), K_a = 2.1 b. Determine the exact pK_a values, using a calculator. c. Which is the strongest acid? Tenormin, a member of the group of drugs known as beta-blockers, is used to treat high blood pressure and improve survival after a heart attack. It works by slowing down the heart to reduce its workload. Which atom in Tenormin is the most basic?
Reid WolffLv2
14 Aug 2019