Grudgeball
Midterm Review
Question 1:

Complete the following chart:
Nuclear
Symbol
30
+3
Al
13
# of
protons
# of
neutrons
# of
Electrons
Mass
number
Charge
Question 1:

Complete the following chart:
Nuclear
Symbol
30
+3
Al
13
# of
protons
# of
neutrons
# of
Electrons
Mass
number
Charge
Question 2:

Calculate the average atomic mass of sulfur if 95.00% of
all sulfur atoms have a mass of 31.972 amu, 0.76% has a
mass of 32.971amu and 4.22% have a mass of 33.967amu.
Question 2:

Calculate the average atomic mass of sulfur if 95.00% of
all sulfur atoms have a mass of 31.972 amu, 0.76% has a
mass of 32.971amu and 4.22% have a mass of 33.967amu.
Question 3:
Convert 2.27 mL/min to km3/year.
Question 3:
Convert 2.27 mL/min to km3/year.
Question 4:
A piece of silly putty has a mass of 5.00 g. It is placed in
25.0 mL of water. The volume of water rises to 29.5 mL.
Determine the density of the silly putty.
Question 4:
A piece of silly putty has a mass of 5.00 g. It is placed in
25.0 mL of water. The volume of water rises to 29.5 mL.
Determine the density of the silly putty.
Question 5:
A student dehydrates a sample of CuSO4·5H2O and
determines the sample contains 35.04% water by mass.
What is the student’s percent error in this lab experiment?
Question 5:
A student dehydrates a sample of CuSO4·5H2O and
determines the sample contains 35.04% water by mass.
What is the student’s percent error in this lab experiment?
Question 6:
A compound has a molecular weight of 60.06 g/mol. The
compound is 39.99% C, 6.73% H, and 53.28% O. What is the
empirical & molecular formula for this compound?
Question 6:
A compound has a molecular weight of 60.06 g/mol. The
compound is 39.99% C, 6.73% H, and 53.28% O. What is the
empirical & molecular formula for this compound?
Question 7:
2 AgNO3 + Cu  2 Ag + Cu(NO3)2
If the actual yield of the reaction was 4.44 grams of copper
(II) nitrate, what is the percent yield?
Question 7:
2 AgNO3 + Cu  2 Ag + Cu(NO3)2
If the actual yield of the reaction was 4.44 grams of copper
(II) nitrate, what is the percent yield?
Question 8:
SeCl6 + O2  SeO2 + 3 Cl2
How many grams of chlorine can be produced from the
reaction of 13.7 grams of SeCl6 and 13.7 grams of oxygen?
Question 8:
SeCl6 + O2  SeO2 + 3 Cl2
How many grams of chlorine can be produced from the
reaction of 13.7 grams of SeCl6 and 13.7 grams of oxygen?
Question 9:
Correctly predict the products (check your solubility chart!)
and balance the following reaction:
Copper (II) nitrate + barium hydroxide 
Question 9:
Correctly predict the products (check your solubility chart!)
and balance the following reaction:
Copper (II) nitrate + barium hydroxide 
Question 10:
Find the molarity of the fluoride ions when 4.56 g of
magnesium fluoride is dissolved in 2.04 L of solution.
Question 10:
Find the molarity of the fluoride ions when 4.56 g of
magnesium fluoride is dissolved in 2.04 L of solution.
Question 11:
What is the pH of a solution that has a [OH-] of 4.52 x 10-9M?
Is the solution acidic, basic or neutral?
Question 11:
What is the pH of a solution that has a [OH-] of 4.52 x 10-9M?
Is the solution acidic, basic or neutral?
Question 12:
Calculate the oxidation number of carbon in oxalate.
Question 12:
Calculate the oxidation number of carbon in oxalate.