Description The pOH of a solution is 5.06. What is its hydronium-ion concentration? Select one: a. 1.1 ´ 105 M b. 1.1 ´ 10–9 M c. 8.7 ´ 10–6 M d. 6.3 ´ 10–3 M
Description What is the cell reaction for the following electrochemical cell? Cu | Cu2+(aq) || Ni2+(aq) | Ni Select one: a. 2Cu(s) + Ni2+(aq) ? Ni(s) + 2Cu2+(aq) b. Cu(s) + Cu2+(aq) ? Ni(s) + Ni2+(aq) c. Cu(s) + Ni2+(aq) ? Ni(s) + Cu2+(aq) d. 2Ni(s) + Cu2+(aq) ? Cu(s) + 2Ni2+(aq)
Description What is the solubility product expression for Al(OH)3? Select one: a. Ksp = [Al3+][3OH–] b. Ksp = 3[Al3+][OH–]3 c. Ksp = [Al3+][OH–]3 d. Ksp = [Al3+][3OH–]3
Description What is the cell reaction for the following electrochemical cell? Ni | Ni2+(aq) || Y3+(aq) | Y Select one: a. 3Ni(s) + 2Y3+(aq) ? 2Y(s) + 3Ni2+(aq) b. 2Y(s) + 3Ni2+(aq) ? 3Ni(s) + 2Y3+(aq) c. Ni(s) + Ni2+(aq) ? Y(s) + Y3+(aq) d. Ni(s) + Y3+(aq) ? Y(s) + Ni2+(aq)
Description In the following electrochemical cell, what is the reduction half reaction? Mn(s) | Mn2+(aq) || Fe3+(aq), Fe2+(aq) | Pt(s) Select one: a. Fe3+(aq) + e- ? Fe2+(aq) b. Fe2+(aq) + e- ? Fe3+(aq) c. Fe2+(aq) + Pt(s) ? Fe3+(aq) + e- d. Mn2+(aq) ? Mn(s) + 2e-
Description The anode in a voltaic cell and in an electrolytic cell is Select one: a. the site of oxidation and of reduction, respectively b. the site of reduction and of oxidation, respectively c. the site of reduction in both cells d. the site of oxidation in both cells
Description According to the following cell notation, which species is undergoing reduction? Sn | Sn2+(aq) || Mn2+(aq) | MnO2(s) | Pt(s) Select one: a. Sn(s) b. Sn2+(aq) c. Mn2+(aq) d. MnO2(s)
Description Which of the following, when added to a saturated solution of AgCl, will cause a decrease in the molar concentration of Ag+ relative to the original solution? 1. HCl(g) 2. AgCl(s) 3. MgCl2(s) Select one: a. 1 only b. 2 only c. 3 only d. 1 and 3 only
