1. List the chemicals youwill use for the hands-on portion of this week\'s labex

Question

1.   List the chemicals youwill use for the hands-on portion of this week's labexperiment. For each chemical, list specific safetyprecaution(s) that must be followed.

Fill in the blanks tocomplete the following chemicalequations.

2.    HC2H3O2     +      NaOH                ______     +      ______  

3.    HCl     +      NaOH               ______     +      ______   

4.    Given the followingdata,

           NO2(g) ½N2(g) +O2(g)    DH1= -33.9 kJ

           NO2(g)    NO(g) +½O2(g)   DH2=56.5kJ

        What isDH for thereaction ½N2(g) + ½O2(g) NO(g)?

        (Hint forquestion #4: concepts explained in the latter half of section 6.6of Chang's Chemistry textbook are helpful in solving thisproblem.)

5. Consider the reaction below. What species are present in each of the beakers? Draw arepresentation of what is going on at the molecular level in theeach of the beakers.

Explanation / Answer

           NO2(g) ½N2(g) +O2(g)   : DH1= -33.9kJ                 ---------(1)

           NO2(g)    NO(g) +½O2(g)  : DH2=56.5kJ                ---------(2)

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