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dear, refer. https://www.homeworklib.com/question/1530881/for-the-diprotic-weak-acid-h2a-ka1-40-10-6-and
We're asked to find the pH of 50mL of .1 M of a weak acid (labeled HX), before we add any .1 M NaOH. The Ka is 1.5e-5. The pH I found was 4.00 (feel free to fact check me). Here's the part I need help with: -We are also asked to find the pH of the solution at the "endpoint". Not sure what this means. Do they mean equilibrium? If so, how would I calculate this? Thanks.
calculating the ph of a weak acid titrated with a strong base An analytical chemist is titrating 241.7 ml of a 0.9100 M solution of propionic acid (HCH.CO) with a 0.4200 M solution of KOH. The pk of propionic acid is 4.89. Calculate the pH of the acid solution after the chemist has added 602.4 ml of the KOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus...
calculating the ph of a weak acid titrated with a strong base An analytical chemist is titrating 52.4 ml of a 1.200 M solution of butanoic acid (HC,H,CO) with a 0.9500 M solution of KOH. The pK, of butanoic acid is 4.82. Calculate the pH of the acid solution after the chemist has added 20.7 mL of the KOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus...
A 0.135 M weak acid solution has a pH of 3.60. Find Ka for the acid. Express your answer using two significant figures.
Find the pH of a 0.200 M HNO2 solution. -Remember that this is a weak acid. HNO2 (aq) + H2O(l) = H30+ (aq) + NO2 (aq) O pH = 3.45 O pH = 7.05 O pH = 15.5 O pH = 2.02 O pH = 0.45 O pH = -2.14
Find the pH of a 0.200 M HNO2 solution. -Remember that this is a weak acid. HNO2 (aq) + H2O (l) = H3O+ (aq) + NO2- (aq)
Find the pH of a 0.200 M HNO2 solution. -Remember that this is a weak acid. H N O 2 ( a q ) + H 2 O ( l ) ⇌ H 3 O + ( a q ) + N O 2 − ( a q ) Group of answer choices pH = 3.45 pH = 7.05 pH = 15.5 pH = 2.02 pH = 0.45 pH = -2.14
This problem deals with Acid-base titrations and pH scale for a weak acid and a weak base. Calculate the pH of the solution that results from adding 7.5 [ml] of Ammonia (NH3) to a beaker that contains, 100 ml of distilled water and 15 ml of 0.1 M Acetic acid (HC2H3O2). A buret containing 50 mL of 0.1 M Ammonia (NH3) is being used as the titrant. The beaker containing 100 ml of distilled water, and 15 ml of 0.1...
O ACIDS AND BASES Calculating the pH of a weak acid titrated with a strong base Try Again Your answer is wrong. In addition to checking your math, check that you used the right data and DID NOT round any intermediate calculations. An analytical chemist is titrating 2010 ml of a 1.100 M solution of benzoic acid (HCH,CO) with a 0.6800 M solution of NaOH. The pK, of benzoic acid is 4.20. Calculate the pH of the acid solution after...
Pyridine is a weak base (C5H5N). Nitrous acid (HNO2) is a weak acid. Which ions are present when HNO2 and C5H5N are dissolved in water? Check all that apply A. H2NO2+ B. NO2- C. NO2+ D. C5H4N- E. C5H5NH+ F. C5H5NH- Pyridine is a weak base (C5H5N). Nitrous acid (HNO2) is a weak acid. Which ions are present when the salt C5H5NHNO2 dissolves in water? Check all that apply A. HNO2 B. C5H5N C. NO2- D. C5H5NH+ E. HNO2+ F....