Why isn’t the pH at the equivalence point equal to 7? Consider the major species present...
Homework Answers
HCl is a strong acid, while NH3 is a weak base, which means that it does not dissociate completely and fails to neutralize the H + ions of HCl, therefore, the pH at the equivalence point is less than 7.
The reaction that occurs is:
NH3 + HCl = NH4 + + Cl-
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Why
isn’t the pH at the equivalence point equal to 7? Consider the
major species present...
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1)A 10.0 mL sample of 0.25 M NH3(aq)
is titrated with 0.20 M HCl(aq) (adding HCl to
NH3). Determine which region on the titration curve the
mixture produced is in, and the pH of the mixture at each volume of
added acid.Kb of NH3 is 1.8 ×
10−5.Henderson–Hasselbalch equation:Part a):1) After adding 10 mL of the HCl solution, the
mixture is [ Select ] ["at", "before", "after"] the
equivalence point on the titration curve.2) The pH of the solution after...
Question 6 1 pts A 10.0 mL sample of 0.25 M NH3(aq) is titrated with 0.20 M HCl(aq) (adding HCl to NH3). Determine which region on the titration curve the mixture produced is in, and the pH of the mixture at each volume of added acid. Ko of NH3 is 1.8 x 10-5 Henderson-Hasselbalch equation: pH = pka + log og HCI NH, NH3- Parta): 1) After adding 10 mL of the HCl solution, the mixture is (Select] the equivalence...
2. Consider the following solutions at 25°C. Identify the major species present in each solution, and classify each solution as acidic, basic or neutral. Solution Major species Acidic/Basic/Neutral? 1.0.10M CH.NHBr (aq) 11. 0.10M KHCO3(aq) Explain your reasoning for your classification for Solution II. 3. Calculate the molarity of a Na HPO solution that would yield a pH of 10.59 at 25°C MacBook Air
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