2. Circle the stronger base: methylamine (pkb = 3.36) or ammonia (pKb = 4.75) Which one of the following 0.20 M aqu...
Relative Abundance B Homework - Unanswered Ammonia NH3(pKb = 4.75) is a weak base. Which pair of species is more abundant in a solution of ammonia with a pH = 8? OA NH3, OH O B NH , OH- OC NH3, H307 OD NH1, H30 Unanswered 2 attempts left 17 Submit
Which of the following 0.10 M aqueous solutions gives the highest pH? A) CH3COOH (pKa = 4.75) B) HF (PK:= 3.45) C) H3PO4 (pKal = 2.12) D) HCIQ (Ka=2.00) E) Since all are acids, the pH is the same for all solutions. 5. Which one of the following salts gives an acidic aqueous solution? A) CsNO3 B) CaCl2C ) LiF D) Cr(CIO4)3 E) NaCH3CO2 6. 7. All of the following are strong acids except A) HCIQB) HC104 C) HI D)...
O ACIDS AND BASES Predicting the qualitative acid-base properties of salts Consider the following data on some weak acids and weak bases: base name formula acid name formula acetic acid HCH,CO2 1.8 x 10-5 nitrous acid HNO 4.5 x 10 ammonia NH; 1.8 x 10 ethylamine C,H, NH, 6.4 x 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH,...
Consider the following data on some weak acids and weak bases: acid base b name formula name formula acetic acid HCH,CO2 1.8 x 10 ammonia NH, | 1.8 x 10" aniline CH NH, 4.3 x 100 hypochlorous acid HClO 3.0 x 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a 2' next to the solution that will have...
ACIDS AND BASES = Predicting the que base properties of salts Consider the following data on some weak acids and weak bases: acid name formula hypochlorous acid HClO hydrofluoric acid HF 3.0 x 10-8 base name formula methylamine CH NH, 4.4 x 10-4 pyridine CHN 1.7* 109 6.8 x 10 4 data to rank the following solutions in order of increasing pH. In other words, select the solution that will have the next lowest pH, and so on. solution pH...
10. Fill in each blánk with increases or decreases As K, increases, acid strength As Kb increases, base strength As pK, increases, acid strength As pKb increases, base strength As acid strength increases, conjugate base strength The stronger an acid, the the conjugate base. (stronger or weaker) HoCI NH4 11. a) Which is the HS stronger acid? stronger acid? stronger base? stronger base? HF pk-3.14 CH,OH pk, 10.0 b) Which is the c) Which is the d) Which is the...
1. Calculate the concentration of H3O+ for an aqueous solution with a pH of 1.2 A) 6.3 x 10-7M B ) 1.6 x 108 M. C) 1.0 x 10-14 M. D) 6.20 x 10-2 M E) 4.0 x 10-4M 2. Calculate the concentration of OH- for an aqueous solution with a pH of 13.8. A) 0.64 M B) 4.0 x 10-5M C) 1.5 x 10-5M D) 1.0 x 10-14 M E) 2.5 x 10-10 M 3. Which of the following...
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is called its conjugate base. What base of the hydronium ion, HO? B)HO C)HO D)H E HO'has no conjugate base. Answer: acid-base pair? 38) For the reaction shown below, which of the following is a conjugate acid A)CHsN, H:0 B) CsH,N, CsH,NH' C)...
Consider the following data on some weak acids and weak bases: acid base name formula hydrofluoric acid HF hypochlorous acid HCO 6.8 x 10 3.0 x 10 name formula aniline CH,NH43 x 100 pyridine CHN 1.7* 109 Use this data to rank the following solutions in order of increasing pH. In other words, select all next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so...
1x10ⓇM B 2x10 M 40 Normal gastric juice has a pH of about 2 and the gastric in is the concentration of HCl in the stomach? U10 M D 3x10 M of about 2 and the gastric juice is aqueous HCI. What 2 M HCI B 1.0x10' M HCI C 0.01 M HCI D 0.14 M HCI Ques. to, 41 Question What is the [H30'] of a sweat sample that has a pH = 5.8? A 2x10mm B3X10ⓇM 3x107M 42...