Practice Test 1
Supplemental Instruction
Iowa State University / Leader: / Grady
Course: / Chem 177
Instructor: / Kingston
Date:
  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 molar mass of propanol?
  7. 44 g
  8. 46 amu
  9. 60 g
  10. 46 g
  11. 60 amu
  12. What is the sum of all the coefficients after the equation is balanced? _2__H3PO4 + _3__Mg(OH)2 _1__Mg3(PO4)2 + _6__H2O
  13. 11
  14. 12
  15. 13
  16. 14
  17. Which of the following acid’s name and formula is NOT correctly paired?
  18. HClHydrochloric acid
  19. H2SO4Persulfuric acid
  20. H2CO3Carbonic Acid
  21. HNO2Nitrous Acid
  22. H3PO4Phosphoric acid
  23. What is the chemical formula for the ionic compound form from the stable ion of Barium and Arsenic?
  24. BaAs3
  25. Ba2As3
  26. Ba3As2
  27. BaAs2
  28. BaAs
  29. Wine is a ______
  30. Pure substance
  31. Homogeneous mixture
  32. Heterogeneous mixture
  33. Compound
  34. 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 NOT a diatomic element?
  2. Nitrogen
  3. Chlorine
  4. Flourine
  5. Carbon
  6. Hydrogen
  7. Name a metalloid

Silicon

  1. Name all the alkaline earth metals
  1. How many moles of Oxygen are there in 5 moles of a Carbonate ion?
  2. 5
  3. 10
  4. 15
  5. 20
  6. 25
  7. You run a 5.0k race in 32 min, what speed were you going in miles/hour (1600 meters in a mile)

5.0 km | 60 min | 1000 m | 1 mile _ = 5.9 miles/hour

32 min | 1 hour | 1 km | 1600 m

  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). Sulfur Dioxide is the limiting reagent.
  2. What is the chemical equation?

SO2(s) + H2O (l) H2SO3 (aq)

  1. How many grams of sulfurous acid is produced?

50 g SO2 |1 mol SO2 | 1 mol H2SO3 | 82.07 g H2SO3 = 64 g

64.07 g SO2 |1 moleSO2 | 1 mol H2SO3

  1. If the volume of sulfurous acid is 40 cm3 what is the density?

1 g = 1 cm3

D=g/V=64 g / 40 mL = 1.6 g/mL

  1. In lab you produce 35.7 g sulfurous acid. What is the percent yield?

35.7 g / 64 g = 56%

  1. Fill in the table:

symbol / 19F1- / 32O / 52Cr2+
Protons / 9 / 16 / 24
Neutrons / 10 / 16 / 28
Electrons / 11 / 16 / 22
Charge / -1 / 0 / 2+
  1. Fill in the blanks in the table:

Compound name / Compound formula / Ionic, Covalent, Ion, Organic or acid?
Manganese(III) oxide / Mn2O3 / Ionic
diphosphorus pentoxide / P2O5 / Covalent
Pernitric acid / HNO / Acid
Acetate Ion / CH3COO- / Ion
Hydrosulfuric acid / H2S (aq) / Acid
Cyanide / CN- / Ion
Heptane / C7H16 / Organic