Concept explainers
Which of the following pairs of species are conjugate pairs? (Select all that apply.)
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Chemistry
- PRACTICE EXAMPLE A: Explain which is the stronger acid, HNO3 or HClO4; CH₂FCOOH or CH₂BrCOOH. [Hint: Draw plausible Lewis structures.] PRACTICE EXAMPLE B: Explain which is the stronger acid, H3PO4 or H₂SO3; CC13CH₂COOH or CCl₂FCH2 COOH. [Hint: Draw plausible Lewis structures.]arrow_forward1. Give an explanation for the decreasing acidity for HI > HBr > HCl a) because the molar mass of the compounds decreases in that order (True or False) b) because the electronegativity of the halogens increases in that order (True or False) c) because the hydrogen-halogen bond strength increases in that order (True or False)arrow_forwardIn a certain acidic solution at 25 °C, [H+] is 100 times greaterthan [OH-]. What is the value for [OH-] for the solution?(a) 1.0 x 10-8 M (b) 1.0 x 10-7 M (c) 1.0x 10-6 M(d) 1.0 x 10-2 M (e) 1.0 x 10-9 Marrow_forward
- View Available Hint(s) (CH3)3 N Zn²+ H₂O NH₁ Fe³+ BF3 edback and fill (CH3)3N(9) + BF3 (9) (CH₂)2NBF, (s): P is the Lewis base. Fe³+ (aq) + 6H₂O(1) Fe(H₂O) (aq): the Lewis base. p Zn²+ (aq) + 4NH3(aq) Zn(NH₂)2 (aq): is the Lewis base. is the Lewis acid and is the Lewis acid and is the Lewis acid and Reset Helparrow_forward7. Aniline (C6H5NH2) has a Kb of 3.8 x 10-10. What is the pH of a 0.150 M aniline solution? (a) 5.12 (b) 8.88 (d) 13.18 (c) 9.42arrow_forward2. Given the following: NaOH (c) H₂O (a) NH3 The Lewis Base(s) is(are) (b) NaOH (c) H₂O b (f) a &c (g) b & c (d) BH3 (d) BH3 (b) (a) NH3 (e) a & (h) a-c (i) a-darrow_forward
- What is the pH of a 0.25 M solution of H3PO4? Ka = 7.2 x 10-³ (A) 0.25 (B) 7.2 x 10-3 (C) 0.0018 (D) 0.042 (E) 1.37arrow_forward3. Determine the [OH-] for an aqueous solution at 25°C with a pH of 4.80. (A) 1.6 × 10-5 M (B) 6.3 x 10 10 M (C) 1.6 x 10 ⁹ M (D) 8.0 x 10 8 Marrow_forwardCH3)2N-PF2 molecule has two Lewis base atoms. One of them reacts with BH3, while the other reacts with BF3. Determine which one is which by explaining the reason. (7N, 15P)arrow_forward
- 8:35 : Question 22 of 23 Submit Which one of the following correctly shows the weak acid equilibrium for trichloroacetic acid, CCl,COOH? A) CCl,COOH (aq) = CCl;CO* (aq) + OH- (aq) В) Cli,COOH (аq) + H,0 (I) — СCl,COOH, (aд) + ОН- (аф) C) CCl,COOH (aq) + H20 (1) = CCI,COO- (aq) + H30* (aq) D) CCl;COOH (aq) + H2O (I) CCl,CO(OH), (aq) + H* (aq) Tap here or pull up for additional resourcesarrow_forward1Q 5.9] Select all that are applicable, which of the following species would Lewis bases? readily act as a) AICI 3 b) H* c) H₂O d) NH 3arrow_forward4. Given the following: NaOH (c) H₂O The Lewis Acid(s) is(are) (b) NaOH (c) H₂O (d) NH3 & b (f) a &c g Oh a (a) BF3 (b) (d) NH3 Of (g) b & c (a) BF3 (e) a (h) a-c (i) a-darrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning