1) Octane (C8H18) oxidizes at high temperatures in the presence of oxygen to form CO2and H2O.  How many moles of CO2 are produced per mole of octane?

2)Methane (CH4) also burns in the presences of oxygen to form CO2 and H2O.  How many lbs of CO2 are formed when 1 lb of methane is burned?

3)Hypochlorous acid (HOCl) is also referred to as “chlorine” as is used as a disinfectant for swimming pools and drinking water.  This is a weak acid with a pKa = 7.53.  Which of the following represents the correct equilibrium equation for this weak acid?

4)For an endothermic reaction, an increase in temperature causes an increase in the equilibrium constant, K.  In this case an increase in temperature would cause:

An increase in the concentration of products over reactants

No change in concentrations other either reactants or products

An increase in reactants over products

5)At a pH = 7, which of the following is true?

 

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