Worksheet Chapter 1 (WGD)

Name:Date:

AP Chemistry – BISD

Summer Review Problems – Complete By First Day, Discuss On 2nd Day

Show all workfor the following dimensional analysis problems on a separate sheet of paper and write the correct answer below.

______1. 6.7cm = ___mm

______2. 58liters = ___m3

______3. 56ft/s = ___in/hr

______4. 5ft3 = ___cm3 (1in = 2.54cm)

______5. 300lb/ml = ___g/dm3

Significant digit problems: Write answers in correct number of significant digits.

______6. 5.67 X 4.6

______7. 3.44 + 5.6 + 7.80

______8. 1.3 X 10-5 - .0057

______9. (2.33 +9.1) / (3.55-1.2)

______10. Volume of solid sample: 32.52 cm3

Mass of empty container: 2.5 g

Mass of container plus solid sample: 24.7 g

What is the density of the sample with answer showing correct sig figs?

Physical (P) or Chemical (C) Change. List each as a physical or chemical change.

______11. Burning wood______12. Dissolving salt in water

______13. Melting ice______14. Souring of milk

______15. Baking soda on an acid spill

Physical (P) or Chemical (C) Properties. List each as a chemical or physical property.

______16. Color______17. Sodium reacts with Chlorine

______18. Density______19. Iron rusts

______20. Melting point

Tell if the following are homogeneous or heterogeneous

______21. Sugar water solution______22. Wood

______23. Water______24. Salt and sand

______25. Iron and salt

Which of the following are pure substances: answer yes or no

______26. Table salt______27. Water

______28. Copper Sulfate solution______29. Gold

______30. Air

Show all workon a separate sheet of paper for #31-#41and write the final answer below.

31. The mass ratio of iron to oxygen in ferric oxide, Fe2O3, is ______to 1.00.

32. How many grams of aluminum nitrate, Al(NO3)3, contain 18.0 grams of oxygen atoms? ______

33. The simplest formula for a hydrocarbon that is 82.8% carbon is ______

34. How many molecules of nitrogen in 3.5 grams of N2? ______How many atoms of nitrogen?______

35. How many grams of potassium permanganate contain 27.5 grams of oxygen?______

36. How many hydrogen atoms are present in 1 mole of acetic acid, CH3COOH?______How many would be present in 28.5 grams of acetic acid?______

37. 11.17 grams of iron metal is allowed to react with oxygen. At the end of the reaction, the compound formed has a mass of 14.37 grams. What is the formula of the compound formed?______

38. How many grams of carbon are present in 0.25 moles of butane, C4H10? ______

39. What is the percent of sulfur in H2SO4?______

40. What is the simplest formula for a compound that is 26.6% potassium, 35.4% chromium, and 38.0% oxygen?______

41. A 15.0 grams sample of an unknown hydrocarbon is burned in excess oxygen. The combustion forms 48.4 grams of carbon dioxide and 16.47 grams of water. What is the simplest molecular formula for the hydrocarbon? ______

Directions: State what type of reaction is occurring. Then write and balance the equation.

EXAMPLE: Sodium metal is added to hydrofluoric acid to produce sodium fluoride and hydrogen gas.

ANSWER: Single Replacement Reaction: 2 Na + 2 HF  2 NaF + H2

42.Small chunks of potassium are added to water. It violently reacts to make hydrogen gas and potassium hydroxide.

44.Calcium metal is added to a solution of hydrochloric acid and produces calcium chloride and hydrogen gas

45.Lithium metal is burned in air creating lithium oxide.

46.Manganese(II) nitrate solution is mixed with rubidium hydroxide solution making manganese(II) hydroxide and rubidium nitrate.

47.Sodium carbonate solution and hydrochloric acid yield sodium chloride, carbon dioxide and water

48.Solid magnesium carbonate undergoes electrolysis to form magnesium oxide and carbon dioxide.

49.The hydrocarbon hexane (C6H14) is burn in excess oxygen generating carbon dioxide and water

50.Water is added to a sample of pure sodium chloride yielding sodium hydroxide and hydrochloric acid.

51. Phosphoric acid is heated to produce diphosphoruspentoxide and water.