Numerical Response 16. The pH of a 0.070 mol/L benzoic acid solution is (Record your three-digit...
What is the pH of 0.7 mol/L benzoic acid solution? benzoic acid = (C6H5COOH, Ka = 6.6 x 10-5) A. 2.17 B. 11.8 C. 4.34 D. 9.80
Calculate the pH of a solution prepared by dissolving 0.050 mol of benzoic acid (HA) and 0.50 mol of sodium benzoate (A-) in water sufficient to yield 1.00 L of solution. The Ka of benzoic acid is 6.30 x 10-5 A. 5.20 B. 1.30 C. 7.00 D. 3.20 E. 4.20
A buffer solution contains 0.41 mol of benzoic acid (HC7H5O2) and 0.43 mol of sodium benzoate (NaC7H5O2) in 2.50 L. The Ka of benzoic acid (HC7H5O2) is Ka = 6.3e-05. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.16 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.05 mol of HI? (assume...
6. a. What is the pH of a 0.085 mol/L solution of benzoic acid, C.HSCOOH? K, for trimethylamine is 6.3 x 10. obenzoic audi 90 lliwoon gambil CoH5COOH + Hal = H209+ CoHSC001291 1 0.085M hem DO 150 pe ni tozoup dong home - Co- xx ++ +X O E 0.085-X ( ka [H30"] [CGHSC00] 46.3x10-5x – 5.3x1000 PH=2641 [GoHs Cook x = 0.00227 6.3 *10*8 = pH = -log[0.00 aa7m) 0.015-x = 2.64 b. If 0.033 mol of KOH...
Use the following information to answer the next two questions The reaction between sodium phosphate and calcium chloride result in the formation of a precipitate. 3. The volume of a 1.85 mol/L solution of Na3PO4 (aq) required to completely react with 1.50 L of a 1.60 mol/L solution of CaCl2(aq) is 0.865 L 1.95 L 1.30 L 2.96 L 4. The mass of precipitate produced when 1.50 L of a 1.60 mol/L solution of CaCl2(aq) completely reacts is 9. (Record...
26. + -/0.1 points 0/4 Submissions Used A buffer solution contains 0.45 mol of benzoic acid (HC7H502) and 0.33 mol of sodium benzoate (NaCzH502) in 3.70 L. The Ka of benzoic acid (HC7H502) is Ka = 6.30-05. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.31 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the...
Maps 1. What is the pH of a 0.35 mol/L solution of acetylsalicylic acid (C9H804)? 2 points Your answer 2. What is the pH of a 1.50 mol/L solution of ammonium chloride (NH4Cl)? 2 points Your answer 4 points 3. What is the pH of the buffer resulting of the mixing of 34.4 g of sodium dihydrogen phosphate (NaH2PO4) and 48.5 g of sodium hydrogen phosphate (Na2HPO4) in 2.5 L of distilled water? Your answer 4. What is the pH...
Write your answer to two decimal places. Calculate the pH of a 0.070 M formic acid (HCOOH) solution. Formic acid is a weak acid with Ka = 1.8 × 10–4 at 25°C.
A 0.1 mol/L hydrochloric acid solution has a pH of 1.0 while a 0.1 mol/L hydrofluoric acid solution has a pH of 2.1. If these two acids have the same concentration, why is there a difference in the pH of these solutions?
What is the pH of a 0.1M solution of benzoic acid? ( Write answer to the hundredths place) KA(benzoic acid) = 6.46x10-5