Mr. Bruce – HONORS CHEMISTRY   Extra Credit Assignment                                                                   1/5/09

 

Date Due:  January 20th, 2009

 

Points:  This will count as either1 test grade and/or 1 quiz grade

 

The Assignment:  For the quiz grade – answer the following questions, showing all work.

                                      

                                       1)  345.00 atoms He = _________________ mol

     2)  35.001 mol Ag  = _______________  g

     3)  3.011 x 10²⁴ atoms Pb =  _______________ mol 

     4)  41.75 g B = _______________ mol

     5)  108.34g Cs = ______________ atoms 

     6)  9.033 x 10²³ atoms C₆H₁₂O₆ = ________________g 

     7)  85 atoms of C = _________________g

     8)  3.5346 Mg = _________________ng

 

                                                  

       For the test grade -  Pick an element (except for H, He, C, N, and O), and tell me the following in a short

                                      report form (Essay)

-        This element cannot be one chosen in the short research project.

Group

Period

Atomic mass

Molar mass

Number of Protons, Neutrons, Electrons

Electron Configuration (Chapter 4 -3)

Electronegativity, Electron Affinity, Atomic Radius Values, and their meanings

Provide at least 5 examples of compounds that contain this element.

Describe at least 5 different uses for this element (ex:  medicine, human body, industry, jewelry, …)

Also, where can it be found.

 

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