Practice Test 1
Supplemental Instruction
Iowa State University / Leader: / Sara
Course: / Chem 177D
Instructor: / Bonaccorsi
Date: / 9/23/13
  1. You weigh a container and its mass is 64.3 grams. It is then filled with water and its new mass is 114.9 grams. What is the volume of the container?
  2. 51 mL
  3. 50.6 cm3
  4. 50.69 cm3
  5. 50 mL
  6. What is the correct formula for iron (III) Phosphate?
  7. Fe2(PO4)3
  8. Fe3(PO4)3
  9. FePO4
  10. Fe3(PO4)2
  11. Hydrofluric acid is a clear liquid that had a density of 5.3 g/mL. At room temperature it reacts with silicon dioxide which has a melting point of 1600 degrees Celsius. In the reaction liquid water and silicon tetrafluoride (with a boiling point of -86 degree Celsius) is produced.
  12. Write a balanced chemical equation for this reaction and be sure to include states.
  1. List 1 chemical, 1 intrinsic and 1 physical property from the above description.
  1. What is the molar mass of propanol (C3H7OH)?
  2. 44 g
  3. 46 amu
  4. 60 g
  5. 46 g
  6. 60 amu
  7. What is the sum of all the coefficients after the equation is balanced? ___H3PO4 + ___Mg(OH)2 ___Mg3(PO4)2 + ___H2O
  8. 10
  9. 11
  10. 12
  11. 13
  12. 14
  13. Which of the following acid’s name and formula is NOT correctly paired?
  14. HClHydrochloric acid
  15. H2SO3Persulfuric acid
  16. H2CO3Carbonic Acid
  17. HNO2Nitrous Acid
  18. H3PO4Phosphoric acid
  19. Solve the equation with the correct amount of significant figures:(10.5734 x 11.527) + 1.3
  20. 100
  21. 120
  22. 123.179
  23. 123.18
  24. 123.2
  1. What is the chemical formula for the ionic compound form from the stable ion of Barium and Arsenic?
  2. BaAs3
  3. Ba2As3
  4. Ba3As2
  5. BaAs2
  6. BaAs
  7. What is the mass of a single molecule of calcium carbonate?
  8. 102 Amu
  9. 102 g
  10. 162 Amu
  11. 162 g
  12. Wine is a ______
  13. Pure substance
  14. Homogeneous mixture
  15. Heterogeneous mixture
  16. Compound
  17. Which of the following are chemical properties?

I. flammable

II. reacts with O2

III. melting point at 400 K

  1. I only
  2. I and II
  3. II and III
  4. I and III
  5. All of them are
  1. What is the charge of a proton, neutron and electron respectively?
  2. +,-,0
  3. -,+,0
  4. 0,+,-
  5. 0,-,+
  6. +,0,-
  7. What is NOT a diatomic element?
  8. Nitrogen
  9. Chlorine
  10. Flourine
  11. Carbon
  12. Hydrogen

Use the periodic Table to answer the next 3 questions:

  1. What letter element is a noble gas?

F

  1. What letter element is an alkali metal?

A

  1. What letter element could have multiple charges

C

  1. There are 2 isotopes of Sodium 22Na and 23Na. Their percent abundance is 1.02% and 98.98 % respectively, what is its atomic mass (ignore sig figs)?
  1. If you combine Na with Cl (which also has 2 isotopes 35Cl and 37Cl) how many different combinations of NaCl would show up on a mass spectroscopy chart (show all possibilities)
  1. You run a 5.0k race in 32 min, what speed were you going in miles/hour (1600 meters in a mile)
  1. If you have 24 g of Al2O3, how many atoms of Aluminum do you have?
  1. If 50. g of sulfur dioxide (mm=64.07) reacts with 25 grams of water (mm=18.02) to for sulfurous acid (mm=82.07)
  2. What is the chemical equation?
  1. What is the limiting reagent?
  1. How many grams of sulfurous acid is produced?
  1. If the volume of sulfurous acid is 40 cm3 what is the density?
  1. Write the empirical formula for HMn2(NO3)2H3. And calculate the percent composition by mass of each of the elements.
  1. You combust liquid C2H4 ?
  2. What is the chemical equation?
  1. You produce 20.0 grams of carbon dioxide, how much water was produced?
  1. If you have .50 moles of C2H4 and 1.0 moles of O2 did the reaction go to completion?
  1. In lab you produced .39 moles of carbon dioxide, what was your percent yield?
  1. Fill in the table:

symbol / 19F1- / Cr
Protons / 16
Neutrons / 16 / 28
Electrons / 16
Charge / 2+
  1. Fill in the blanks in the table:

Compound name / Compound formula / Ionic, covalent or acid?
FeCl2
Sulfur Tetrabromide
HF
Sodium Nitrate
Hypoiodous acid
N6Cl