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Which of the following pairs of species are conjugate pairs? (Select all that apply.)
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Chemistry
- Which of the following species are Lewis bases? (choose all that apply) CH3+ NH3 AlH3 CH3- H2O NH4+arrow_forwardPRACTICE 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_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
- 7. 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_forwardView 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_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
- 1Q 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_forward8:35 : 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_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning