If NH3 (ammonia, pKb=4.74) is added to a solution of Fe(NO3)3 such that right after the...
Homework Answers
Here, [Fe3+] = [Fe2+] = 0.004 M or 4*10-3 M
pOH = 1/2 (pKb - Log[NH3]) = 1/2 (4.74 - Log5) = 2.0205
i.e. [OH-] = 10-2.0205 = 9.54*10-3 M
Now, Kc = 1/[Fe2+][OH-] = 1/(4*10-3 * 9.54*10-3) = 2.621*104
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If
NH3 (ammonia, pKb=4.74) is added to a solution of Fe(NO3)3 such
that right after the...
1) Ammonia, NH3, is a monoprotic base with pKb = 4.74 at 25 °C. For 0.121...
1) Ammonia, NH3, is a monoprotic base with pKb = 4.74 at 25 °C. For 0.121 mol L−1 NH3(aq) at 25 °C, calculate (a) the percent ionization of NH3; and (b) the pH of the solution. 2) Hydrazoic acid, HN3, is a monoprotic acid with pKa = 4.72 at 25 °C. For 0.121 mol L−1 HN3(aq) at 25 °C, calculate (a) the percent ionization of HN3; and (b) the pH of the solution.
An analytical chemist is titrating 227.4mL of a 0.5200M solution of ammonia NH3 with a 0.5400M...
An analytical chemist is titrating 227.4mL of a 0.5200M solution
of ammonia NH3 with a 0.5400M solution of HNO3. The pKb of ammonia
is 4.74. Calculate the pH of the base solution after the chemist
has added 230.7mL of the HNO3 solution to it.
Note for advanced students: you may assume the final
volume equals the initial volume of the solution plus the volume of
HNO3solution added.
Round your answer to 2 decimal places.
An analytical chemist is titrating 227.4...
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40. Concentrated aqueous ammonia is added to a solution of copper(II) sulfate. A white precipitate forms....
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An analytical chemist is titrating 66.8 mL of a 0.7300 M solution of ammonia (NH3) with...
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An analytical chemist is titrating 149.5 mL of a 0.8000 M solution of ammonia (NH3) with...
An analytical chemist is titrating 149.5 mL of a 0.8000 M solution of ammonia (NH3) with a 0.7300 M solution of HNO3. The pK, of ammonia is 4.74. Calculate the pH of the base solution after the chemist has added 52.0 mL of the HNO3 solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added. Round your answer to 2 decimal places. pH...
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An analytical chemist is titrating 227.4mL of a 0.5200M solution
of ammonia NH3 with a 0.5400M solution of HNO3. The pKb of ammonia
is 4.74. Calculate the pH of the base solution after the chemist
has added 230.7mL of the HNO3 solution to it.
Note for advanced students: you may assume the final
volume equals the initial volume of the solution plus the volume of
HNO3solution added.
Round your answer to 2 decimal places.
An analytical chemist is titrating 227.4...
40. Concentrated aqueous ammonia is added to a solution of copper(II) sulfate. A white precipitate forms. The precipitate dissolves as more ammonia is added, generating an intensely blue solution. Which combination of net ionic equations, in the appropriate order, describes this chemistry?! I Cu?* (aq) + 2OH(aq) Cu(OH)2 (19) II Cu?" (aq) + 2OH(aq) = Cu(OH)2 (8) III Cu(OH)(aq) + 4 NH, (aq) Cu(NH3),?* () + 2OH(aq) IV Cu(OH)2 (8) + 4NH, (aq) Cu(NH3)*(14) + 2OH(aq) V NH3(aq) + H20...
An analytical chemist is titrating 66.8 mL of a 0.7300 M solution of ammonia (NH3) with a 0.5100 M solution of HNO3. The p K, of ammonia is 4.74 Calculate the pH of the base solution after the chemist has added 109.2 mL of the HNO2 solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO2 solution added. Round your answer to 2 decimal places....
An analytical chemist is titrating 149.5 mL of a 0.8000 M solution of ammonia (NH3) with a 0.7300 M solution of HNO3. The pK, of ammonia is 4.74. Calculate the pH of the base solution after the chemist has added 52.0 mL of the HNO3 solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added. Round your answer to 2 decimal places. pH...
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