Lesson 33



Name:ETP Section:t3 Start Time:16:10:22 Instructor:pattersonet Course:421



1. The chemical reaction that describes the burning of parafin is:

2 C20H42 + 61 O2 40 CO2 + 42 H2O.

What would be an equation that would describe the equilibrium condition for this chemical reaction?

Enter your answer here:



2. Pure water has a pH of 7. (Recall, pH = -log10[H+].) In something that is acidic enough that its pH level is 3, what is the approximate equilibrium concentration of OH- ions?

Check the correct answer:
a) [OH-] = 10-14mol/liter
b) [OH-] = 10-3mol/liter
c) [OH-] = 10-11mol/liter
d) Not enough information is provided to determine the answer.

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