Provide a scheme of Benzoic C6H5-COOH with water (acid ionization expression). The pKa is 4.20 and...
Provide a scheme of Benzoic C6H5-COOH with water (acid ionization expression). The pKa is 4.20 and the molar mass is 122.1g.
Provide a scheme of Salicylic C6H4(COOH)(OH) with water (acid ionization expression). The pKa is 2.98 and the molar mass is 138.1g.
Homework Answers
acid ionisation expression : C6H5COOH (aq) + H2O (l) <--------------------> C6H5COO-(aq) + H3O+ (aq)
ionization constant = Ka = [C6H5COO-] [H3O+] / [C6H5COOH]
acid ionisation expression C6H4(COOH)(OH) (aq) + H2O (l) <-------------> C6H4(COO-)(OH) (aq) + H3O+
ionization constant = Ka = [C6H4(COO-)(OH)] [H3O+] / [C6H4(COOH)(OH)]
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Provide a scheme of Benzoic C6H5-COOH with
water (acid ionization expression). The pKa is 4.20 and...
Suppose there is 1.001.00 L of an aqueous buffer containing 60.060.0 mmol of benzoic acid (p?a=4.20)(pKa=4.20)...
Suppose there is 1.001.00 L of an aqueous buffer containing 60.060.0 mmol of benzoic acid (p?a=4.20)(pKa=4.20) and 40.040.0 mmol of benzoate. Calculate the pH of this buffer.
4. Write the expression for K, for the ionization of CH,COOH in water.
4. Write the expression for K, for the ionization of CH,COOH in water.
Assume you dissolve 0.132 g of the weak acid benzoic acid, C6H; CO2H, in enough water...
Assume you dissolve 0.132 g of the weak acid benzoic acid, C6H; CO2H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.184 M NaOH.( K, for benzoic acid = 6.3 x 10-5.) CoH; CO, H(aq) + OH (aq) = C, H; CO2 (aq) + H20(4) a. What wasythe pH of the original benzoic acid solution? pH = b. What are the concentrations of all of the following ions at the equivalence...
Complete the ionization reaction of butanoic acid (CH,CH,CH,COOH) in water. Include all hydrogen atoms and charges....
Complete the ionization reaction of butanoic acid (CH,CH,CH,COOH) in water. Include all hydrogen atoms and charges. Select Draw Rings More Erase // ICOH +H,0- HyC-CH2-CH2-C-OH + 0 2
Part A Calculate the percent ionization of a 0.18 M benzoic acid solution in pure water....
Part A Calculate the percent ionization of a 0.18 M benzoic acid solution in pure water. Express your answer using two significant figures. ANSWER: 1.8 Part B Calculate the percent ionization of a 0.18 M benzoic acid solution in a solution containing 0.11 M sodium benzoa Express your answer using two significant figures. ANSWER: 0.18 0.06 1.03X1 x 100% Part C Why is the percent ionization so different in the two solutions? ANSWER: Essay answers are limited to about 500...
Complete the chemical equation for the acid ionization of hydrochloric acid HCl in water. Provide your...
Complete the chemical equation for the acid ionization of
hydrochloric acid HCl in water.
Provide your answer below:
H30+ + CL-?????
help please
Complete the chemical equation for the acid ionization of hydrochloric acid HCl in water. Provide your answer below: HCl(aq) + H,00) = H0+ (aq) + CI+ (aq)
1. Write the equilibrium expression for the autoionization of water. Using this expression define the terms...
1. Write the equilibrium expression for the autoionization of water. Using this expression define the terms acid and base and pH. 2. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 0.082M solution of triethylamine. 3. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 1.570 M solution of hydrogen cyanide. 4. The acid-dissociation constant for hypochlorus acid is 3.0 X 10-8. Calculate the concentrations of H3O+, CIO-, and HCIO at equilibrium if the initial concentration...
pKa Conjugate base Acid formula Conjugate base name Acid name F3CCOOH 0.20 F3ccoo trifluoroacetic acid trifluoroacetate...
pKa Conjugate base Acid formula Conjugate base name Acid name F3CCOOH 0.20 F3ccoo trifluoroacetic acid trifluoroacetate ion 13.80 Cl3CCOOH 13.34 0.66 Cl3CCOO trichloroacetic acid trichloroacetate ion HOOCCOOH 1.23 HOOCCOO oxalic acid hydrogen oxalate ion 12.77 Cl2HCCOOH 12.70 dichloroacetic acid 1.30 Cl2HCCOO dichloroacetate ion H2SO3 12.23 1.77 HSO3 sulfurous acid hydrogen sulfite ion 1.92SO42- HSO4 hydrogen sulfate ion sulfate ion 12.08 HCIO2 1.95 CI02 chlorous acid chlorite ion 2.12 H2PO.4 phosphoric acid H3PO dihydrogen phosphate ion 11.88 CIH2CCOOH 2.87 CIH2CCOO 11.13...
5 g of an unknown acid, HA, is dissolved in enough water to provide 25.0 mL...
5 g of an unknown acid, HA, is dissolved in enough water to provide 25.0 mL of solution. The pH of this HA (aq) solution is 2.1 . This solution is titrated with a 0.210 M NaOH solution. 60.2 mL of this NaOH solution is needed to reach the equivalence point. (a) What is the molar mass of HA? (b) What is the value of pKa for HA (aq)? (c) What is the pH at the equivalence point? (d) What...
2.77 g of an unknown acid, HA, is dissolved in enough water to provide 25.0 mL...
2.77 g of an unknown acid, HA, is dissolved in enough water to provide 25.0 mL of solution. The pH of this HA (aq) solution is 1.33. This solution is titrated with a 0.250 M NaOH solution. 40.6 mL of this NaOH solution is needed to reach the equivalence point. (a) What is the molar mass of HA? (b) What is the value of pKa for HA (aq)? (c) What is the pH at the equivalence point? (d) What is...
4. Write the expression for K, for the ionization of CH,COOH in water.
Assume you dissolve 0.132 g of the weak acid benzoic acid, C6H; CO2H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.184 M NaOH.( K, for benzoic acid = 6.3 x 10-5.) CoH; CO, H(aq) + OH (aq) = C, H; CO2 (aq) + H20(4) a. What wasythe pH of the original benzoic acid solution? pH = b. What are the concentrations of all of the following ions at the equivalence...
Complete the ionization reaction of butanoic acid (CH,CH,CH,COOH) in water. Include all hydrogen atoms and charges. Select Draw Rings More Erase // ICOH +H,0- HyC-CH2-CH2-C-OH + 0 2
Part A Calculate the percent ionization of a 0.18 M benzoic acid solution in pure water. Express your answer using two significant figures. ANSWER: 1.8 Part B Calculate the percent ionization of a 0.18 M benzoic acid solution in a solution containing 0.11 M sodium benzoa Express your answer using two significant figures. ANSWER: 0.18 0.06 1.03X1 x 100% Part C Why is the percent ionization so different in the two solutions? ANSWER: Essay answers are limited to about 500...
Complete the chemical equation for the acid ionization of
hydrochloric acid HCl in water.
Provide your answer below:
H30+ + CL-?????
help please
Complete the chemical equation for the acid ionization of hydrochloric acid HCl in water. Provide your answer below: HCl(aq) + H,00) = H0+ (aq) + CI+ (aq)
1. Write the equilibrium expression for the autoionization of water. Using this expression define the terms acid and base and pH. 2. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 0.082M solution of triethylamine. 3. Calculate the pH, pOH, Ka, Kb, pKa, and pKb for a 1.570 M solution of hydrogen cyanide. 4. The acid-dissociation constant for hypochlorus acid is 3.0 X 10-8. Calculate the concentrations of H3O+, CIO-, and HCIO at equilibrium if the initial concentration...
pKa Conjugate base Acid formula Conjugate base name Acid name F3CCOOH 0.20 F3ccoo trifluoroacetic acid trifluoroacetate ion 13.80 Cl3CCOOH 13.34 0.66 Cl3CCOO trichloroacetic acid trichloroacetate ion HOOCCOOH 1.23 HOOCCOO oxalic acid hydrogen oxalate ion 12.77 Cl2HCCOOH 12.70 dichloroacetic acid 1.30 Cl2HCCOO dichloroacetate ion H2SO3 12.23 1.77 HSO3 sulfurous acid hydrogen sulfite ion 1.92SO42- HSO4 hydrogen sulfate ion sulfate ion 12.08 HCIO2 1.95 CI02 chlorous acid chlorite ion 2.12 H2PO.4 phosphoric acid H3PO dihydrogen phosphate ion 11.88 CIH2CCOOH 2.87 CIH2CCOO 11.13...
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