Electrochemistry (due on May 19, 2010)

Compare and contrast Galvanic and Electrolytic cell. Describe in detail.

A note from Dr. Kailasa

Dear Students,

We couldn't continue our online discussion for a few weeks due to the major projects (Career Project and Chemistry portfolio). Now we are back, tune in for next blog post soon.

Dr. Kailasa

Chemical Reactions

I. For the chemical reaction : C4H10 + O2 ------> CO2 + H2O
a) Balance the equation.
b) Why do we have to balance chemical equations?
c) What is the type of reaction?
d) If you start with 3 moles of Butane with enough oxygen, how many moles of water will be formed?

II. John has burned 756 g of log completely in his fire place to heat up his house. At the end of this process, John  was left with 106g of ashes.Describe in detail whether matter was destroyed or not during this process?

Stoichiometry

What is the importance of the coefficients in a balanced chemical reaction?

Mole concept

Define mole. Describe the importance of mole concept in chemistry?

Single Replacement

What determines whether one metal will replace another metal from a compound in a single-replacement reaction? Explain.

Chemical Reactions - Predicting products

Describe the process(es)/method(s)/thought process to predict product(s) if reactant(s) are known.