Consider the following voltaic cell with the overall cell reaction: Zn (s) + 2 H+ (g) ⟶ Zn2+ (g) + H2 (g) If the pressure of H2 gas is increased in the cathode cell, the value of Q will and the value of Ecell will .
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Consider the titration of 25.0 mL of 0.10 M HClO4 with KOH. …
Consider the titration of 25.0 mL of 0.10 M HClO4 with KOH. What is the pH after 20.0 mL of 0.40 M KOH has been added?
Consider the voltaic cell diagram: Cr(s) | Cr3⁺(aq) || Fe2⁺…
Consider the voltaic cell diagram: Cr(s) | Cr3⁺(aq) || Fe2⁺ (aq) | Fe (s) What is the standard cell potential, E°cell, (in V) for this voltaic cell? Hint: Refer to the table of standard reduction potentials provided. Half Reaction E° red (V) Ag+ (aq) + e– → Ag (s) +0.80 Fe3+ (aq) + e– → Fe2+ (aq) +0.77 Cu2+ (aq) + 2 e– → Cu (s) +0.34 Sn4+ (aq) + 2 e– → Sn2+ (aq) +0.15 2H+ (aq) + 2 e– → H2 (g) 0.00 Pb2+ (aq) + 2 e – → Pb (s) –0.13 Sn2+ (aq) + 2 e– → Sn (s) –0.14 Ni2+ (aq) + 2 e – → Ni (s) –0.28 Cd2+ (aq) + 2 e – → Cd (s) –0.40 Fe2+ (aq) + 2 e – → Fe (s) –0.44 Cr3+ (aq) + 3 e– → Cr (s) –0.74 Zn2+ (aq) + 2 e – → Zn (s) –0.76 Al3+ (aq) + 3 e– → Al (s) –1.66
Given the standard reduction potentials below: Half Rea…
Given the standard reduction potentials below: Half Reaction E° red (V) Ag+ (aq) + e– → Ag (s) +0.80 Fe3+ (aq) + e– → Fe2+ (aq) +0.77 Cu2+ (aq) + 2 e– → Cu (s) +0.34 Sn4+ (aq) + 2 e– → Sn2+ (aq) +0.15 2H+ (aq) + 2 e– → H2 (g) 0.00 Pb2+ (aq) + 2 e – → Pb (s) –0.13 Sn2+ (aq) + 2 e– → Sn (s) –0.14 Ni2+ (aq) + 2 e – → Ni (s) –0.28 Cd2+ (aq) + 2 e – → Cd (s) –0.40 Fe2+ (aq) + 2 e – → Fe (s) –0.44 Cr3+ (aq) + 3 e– → Cr (s) –0.74 Zn2+ (aq) + 2 e – → Zn (s) –0.76 Al3+ (aq) + 3 e– → Al (s) –1.66 Which of the following substances would be the weakest reducing agent?
The base-dissociation constant, Kb , for aniline, C6H5NH2, …
The base-dissociation constant, Kb , for aniline, C6H5NH2, is 4.0 x 10-10. The acid-dissociation constant, Ka , for the anilinium ion, C6H5NH3+, is . Hint: All Ka/Kb values are at 25°C.
Consider the titration of 10.0 mL of 0.10 M HClO4 with KOH. …
Consider the titration of 10.0 mL of 0.10 M HClO4 with KOH. What is the pH after 20.0 mL of 0.35 M KOH has been added?
Complete and balance the following redox half-reaction equat…
Complete and balance the following redox half-reaction equation under acidic conditions. Cr3+(s) → CrO42-(aq) (acidic solution) How many electrons are transfered in this half-reaction when the equation is balanced using the set of smallest whole-number coefficients?
Consider the following titration curve graphs: Which plo…
Consider the following titration curve graphs: Which plot shows the pH curve expected when HCN is titrated by NaOH ?
Consider the titration of 50.0 mL of 0.10 M HClO4 with KOH. …
Consider the titration of 50.0 mL of 0.10 M HClO4 with KOH. What is the pH after 20.0 mL of 0.50 M KOH has been added?
Copper metal, Cu (s), is produced by running a current throu…
Copper metal, Cu (s), is produced by running a current through a solution of Cu2+ in an electrolytic cell. How many grams of copper metal can be deposited from Cu²⁺(aq) when a current of 2.50 A is run for 2.00 h? Hint: F = 96,500 C/mol e− Hint: 1 A = 1 C/s