Determining the dominant force in alkanes.

What type of intermolecular forces or bonds dominate in alkanes?

Coulombs

How many coulombs of charge are required to oxidize 1.0g of copper to copper(II) ions?

Determining the amount of time required to electroplate silver.

An electrolytic cell is used to plate silver from a silver nitrate solution onto an electrode. How many seconds are required to deposit 5.0g of silver if the current is kept constant at 2.0 amperes? Assume 100% current efficiency.

Determining the amount of coulombs required to deposit a required amount of mass from a solution.

How many coulombs of charge are required to deposit 2.00g of Fe(s) from a solution of Fe3+?

Determining the product at the cathode in an electrolytic cell.

If current is passed in an electrolytic cell containing only Na+(aq) and Cl-(aq), what is the product of the cathode?

Multiple choice question regarding changes in entropy.

Which of the following reactions is likely to have the most positive change in entropy? a. N2(g)+3H2-->2NH3(g) b. CaO(s)+CO2--->CaCO3(s) c. N2(g)+2O2(g)-->2NO2(g) d. C(s)+)O2(g)-->CO2(g) e. 2C(s)+O2(g)-->2CO(g)

Voltaic cell

A voltaic cell is based uon the following overall reaction: 2H+(aq)+Sn(s)-->H2(g)+Sn2+(aq) where E=0.141V Calculate the equilibrium constant at 25 degrees Celsius.

Calculating the change in G for a voltaic cell.

Calculate the change in G for a voltaic cell with E= +0.309V if the overall reaction involves a 3 electron reduction.

Calculating the change in G.

What is the change in G at 55 degrees Celsius for a reaction with a change in H=124kJ and change in S = 83.1J/K?

A multiple choice question about the equality of delta G and delta H.

The change in G and the change in H are equal: a. At O degrees Cesius b. At O degrees K c. When concentrations equal 1M and partal pressure equal 1 atm d. When all reactants and products are in the same phase e. When the reaction is exothermic