CHM1033 Review Exercises Test 1 Modules 1-3:          Name_________________________

 

  1. Convert the following: All conversion factors and units must be shown!
    1. 46.9 cm to feet.

 

 

    1. 9390 tons to grams.

 

 

    1. .789 km to mm.

 

 

    1. 7986 cups to gallons.

 

 

    1. 3.5 m3 to mm3.

 

          

    1. 68 ft3 to cm3.

 

 

    1. 35 mi/hr to cm/min.

 

 

  1. Perform the following density problems: Show all formulas, conversion factors and units.
    1. What is the density in g/mL of a substance with a mass of 36.7 g and a volume of .0126 L?

 

 

 

    1. What volume in mL will a substance occupy if it has a mass of 899 grams and a density of 3.2 g/mL? Use conversion factor(s).

 

 

 

    1. What is the specific gravity of an a rectangular prism with dimensions of 7.9 cm length, 4.9 cm width, and 2.6 cm height if it weighs 450 grams?

 

 

    1. What is the mass of an object if its density is .789 g/mL and when added to 20.0 mL of water the volume is displaced to 56.8 mL? Use conversion factor(s).

 

 

  1. Perform the following temperature conversions:   
    1. -87.5oC to Kelvin.

 

 

    1. 100.4 K to  Farenheit.

 

 

    1. 65.4oF  to  Celsius.  

 

  1. Identify the missing amounts: Note that AN=atomic number and MN=mass number.

                              # p       #e      #n      AN     MN   symbol    element

 

                             a.    56                 45

                             b.                         33                             Br

                             c.                                             25          K

                             d.                         64                                            silver

 

 

  1. Provide the number of valence electrons and the charge of the ion formed for each of the following elements:

                 a. Sr                                b. I                           c. Ga                       d. P

      6. What is the electronic configuration for each of the following elements?

                 a. Mg                             b. S                        c. Ar                          d. C

      7. Identify the name of each of the following sections of the periodic table:

                 a. Group IIA                            b. Group VIIA                      

                 c. Group B elements              d. lowest row of the table (elements 89-102)

      8. Draw the Lewis dot structure for each of the following elements or compounds:

          a.  S                           b. Sr                           c. Rn

         

          d.  CCl4                              e. H2S

 

 

      9. Identify each of the following as covalent or ionic compounds:

          a. NF3                     b. NH4NO3                       c. FeCO3

          d. H2O                     e. BaCl2                           f. PCl5

      10. Identify each of the following as a homogeneous or a heterogeneous mixture:

           a. water from the ocean

           b. bronze

           c. air

           d. a milkshake

           e. tomato juice

           f. white wine

      11. What is the formula for compounds made with the following elements?

           a. Al and P                             b. Ca and N                              c. Rb and O

      12. Name the following:

           a. SiO2                                                 b. KNO3

           c. Ga2(SO4)3                                         d. Ca(OH)2

           e. MgSe                                                 f. N2O

           g. XeF4                                                 h. Li3N

       13. Provide the formulas for each of the following:

           a. diphosphorous pentoxide

           b. ammonium phosphate

           c. strontium phosphide

           d. sodium sulfide

           e. sulfur tetrachloride

           f.  aluminum carbonate

      14. How many teaspoons of a medicine does a patient need to take if 4.5 grams are required for every 20 pounds of body weight, the patient weighs 150 pounds, and every teaspoon contains 11.3 grams of medicine? Please round to the nearest teaspoon.