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2. Suppose 500.0 mL 0.0600 M HCl(aq) is added to 500.0 mL 0.0800 MNH3(aq).
a) Write the initial reaction:

b) Excluding water, what is the number of moles of each componentpresent after reaction?

c) What is the chemical equation for the equilibrium that you areusing to determine the pH?

d) Determine the pH.

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Beverley Smith
Beverley SmithLv2
28 Sep 2019

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<p>1. Suppose 500.0 mL 0.0600 M HCl<sub>(aq)</sub>is added to 500.0 mL 0.0800 MKOH<sub>(aq)</sub></p>
<p>&#160;&#160; a) Write the initialreaction:</p>
<p>&#160;&#160; b) Excluding water, what is thenumber of moles of each component present afterreaction?</p>
<p>&#160;&#160; c) Determine the pH.</p>
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<p>can anyone help me?</p>
<p>and does this question considered as more than 1question?</p>

Consider the reaction IO4– (aq) + 2 H2O(l) H4IO6–(aq); Kc = 3.5 × 10-2. If you start with 25.0 mL of a 0.905 M solution of NaIO4, and then dilute it with water to 500.0 mL, what is the concentration of H4IO6- at equilibrium?

1. NH3(aq) + H2O(l) ó NH4+(aq) + OH–(aq)

In aqueous solution, ammonia reacts as represented above. In 0.0180 M NH3(aq) at 25ºC, the hydroxide ion con­centration, [OH–] is 5.60 x 10–4 M. In answer­ing the following, assume that temperature is constant at 25ºC and that volumes are additive.

(a) Write the equilibrium-constant expression for the re­action represented above.

(b) Determine the pH of 0.0180 M NH3(aq).

(c) Determine the value of the base ionization constant, Kb, of NH3(aq).

(d) Determine the percent ionization of NH3 in 0.0180 M NH3(aq).

(e) In an experiment, a 20.0 mL sample of 0.0180 M NH3(aq) was placed in a flask and titrated to the equivalence point and beyond using 0.0120 M HCl (aq).

(i) Determine the volume of 0.0120 M HCl (aq) that was added to reach the equivalence point.

(ii) Determine the pH of the solution in the flask after a total of 15.0 mL of 0.0120 M HCl (aq) was added.

(iii) Determine the pH of the solution in the flask after a total of 40.0 mL of 0.0120 M HCl (aq) was added

Thank you in advance, sorry this is a little longer question. Please help me with the work on how to do them.

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