Question 1 Status: Not yet answered I Points possible: 1.00 Consider the reaction corresponding to a...
Consider the reaction corresponding to a voltaic cell and its standard cell potential. Zn(s) + Cu2+ (aq) Cu(s) + Zn2+ (aq) ЕО cell = 1.1032 V What is the cell potential for a cell with a 2.440 M solution of Zn2+ (aq) and 0.1636 M solution of Cu²+ (aq) at 439.5 K?
Consider the reaction corresponding to a voltaic cell and its standard cell potential. cell Zn(s) + Cu2+ (aq) + Cu(s) + Zn2+ (aq) E = 1.1032 V As What is the cell potential for a cell with a 2.573 M solution of Zn²+ (aq) and 0.1055 M solution of Cu²+ (aq) at 432.4 K?
Consider the reaction corresponding to a voltaic cell and its standard cell potential. Zn(s) + Cu²+ (aq) + Cu(s) + Zn2+ (aq) = 1.1032 V What is the cell potential for a cell with a 2.401 M solution of Zn2+ (aq) and 0.1776 M solution of Cu²+ (aq) at 420.4 K? Answer:
Consider the reaction corresponding to a voltaic cell and its standard cell potential. Zn(s) + Cu?+ (aq) Cu(s) + Zn²+ (aq) E cell 1.1032 V What is the cell potential for a cell with a 2.344 M solution of Zn?' (aq) and 0.1701 M solution of Cu?+ (aq) at 441.2 K?
Question 4 Status: Not yet answered Points possible: 1.00 Consider the balanced equation of KI reacting with Pb(NO3), to form a precipitate. 2 KI (aq) + Pb(NO3)2 (aq) + Pbl (8) + 2 KNO3(aq) What mass of Pbl, can be formed by adding 0.489 L of a 0.364 M solution of KI to a solution of excess Pb(NO3)2? Answer: Question 5 Status: Not yet answered Points possible: 1.00 Suppose that you decompose 24.45 g of Ni 03, which has a...
It is expected that a chemical reaction will occur when copper metal is combined with aqueous zinc sulfate. Explain why there will be no reaction when zinc metal and aqueous copper sulfate solution are combined. Identify the anode and the cathode, assuming a voltaic cell is constructed. Note: Be careful in the calculation of the standard cell potential ( Eo cathode - Eo anode). Do not change the sign of the given reduction potential. The sign is already taken care...
QUESTION REVIEW Question 7 Status: Not yet answered Points possible: 1.00 Consider the Sn2 reaction of an alcohol with an alkyl halide in the presence of base. The Choose... should be added to the alcohol first to Choose... the alcohol and allow it to attack the Choose...
Consider the cell: Zn(s)ǀ(Zn2+(0.20 M)ǁCu2+(0.20 M)ǀCu(s) with Eº(Cu2+/Cu = 0.34 v and Eº(Zn2+/Zn) = –0.76 v a) Write the cell reaction which occurs when the cell produces current and calculate Ecell. b) If each cell compartment contains 25.0 mL of the corresponding metal salt solution and 25.0 mL of 3.00 M NH3(aq) is added to the Cu2+ solution, Ecell = 0.68 v. Use these data to calculate Kf for Cu(NH3)42+. Cu2+(aq) + 4 NH3(aq) ⇄ Cu(NH3)42+
Question 2 Status: Not yet answered Points possible: 1.00 Consider the balanced reaction of magnesium and oxygen. .2 Mg +O2 2 MgO What mass of MgO can be produced from 1.38 g of Mg and 2.73 g of O2? Answer
Question 2 (1 point) Consider the following voltaic (galvanic) cell: Zn(s) | 0.010 mol/L Zn2+ (aq) || 1.0 mol/L Cu2+(aq) | Cu(s) What is the predicted cell potential when this cell is operated? 1.04 V 1.10 V 0.76 V 0.34 V 1.16 V