1. What is the percent yield if 25.0 g of I2 is formed when 130.0 g of HNO3 reacts with 285.0 g of HI as follows: 2HNO3 + 6HI -> 2NO + 3I2 + 4H2O
a. 27.2%
b. 17.6%
c. 8.84%
d. 4.42%
2. How many milliliters of 1.00 M NaOH are required to completely neutralize 100.0mL of 0.500 M H3PO4?
a. 50.0 mL
b. 100.0 mL
c. 150.0 mL
d. 200.0 mL
3. What is the molarity of a NaNO3 solution if 25.0 mL of a 0.200 M NaNO3 solution is diluted to 100.0 mL?
a. 0.0500 M
b. 0.100 M
c. 0.150 M
d. 0.200 M
4. What is the molarity of a solution that contains 32.0 g of HCl in 2.50 L of solution?
a. 0.00351 M
b. 0.0128 M
c. 0.351 M
d. 12.8 M
5. How many moles of H2SO4 are present in 250 mL of a 3.00 M H2SO4 solution?
a. 0.150 moles
b. 0.750 moles
c. 1.50 moles
d. 750 moles
6. Which of the following is not a strong base?
a. NaOH
b. Ca(OH)2
c. LiOH
d. NH3
7. When HBr is neutralized with KOH, what salt is produced?
a. H2O
b. KH
c. KBr
d. K2O
8. What are the spectator ions in the reaction: BaCl2(aq) + Na2SO4(aq) -> 2NaCl(aq) + BaSO4(s)
a. Ba2+, Cl.
b. Na+, Cl.
c. Ba2+, SO42-
d. Na+, SO42-
9. Which of the following is the net ionic equation for the reaction
Fe(NO3)3(aq) + K3PO4(aq) -> FePO4(s) 3KNO3(aq)
a. K+(aq) + NO3-(aq) -> KNO3(aq)
b. Fe3+(aq) + PO43-(aq) -> FePO4(aq)
c. 3K+(aq) + PO43-(aq) -> K3PO4(aq)
d. Fe3+(aq) + PO43-(aq) -> FePO4(s)
10. Which of the following is most easily oxidized?
a. Na
b. Cl2
c. Au
d. S