Practice Final
Last Name ____________________First Name _______________________
Ignore: 5, 7, 19, 30
1. | How many grams of CaCl2 (molar mass = 111.0 g/mol) are needed to prepare 4.44 L of 0.500 M CaCl2 solution? | | A) 369 g B) 271 g C) 258 g D) 296 g E) 246 g |
2. | An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of lead(II) nitrate.The complete ionic equation contains which of the following species (when balanced in standard form)? | | A) B) C) D) E) |
3. | An example of a mixture is | | A) the air in this room B) gold C) hydrogen fluoride D) purified water E) all of these |
4. | When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type?Pb(NO3)2 + K2CO3 PbCO3 + KNO3 | | A) 1 B) 5 C) 4 D) 3 E) 2 |
5. | A solution has a pH of 3.28. The pOH of this solution is | | A) 10.72 B) 10.62 C) 3.28 D) 3.38 E) none of these |
6. | What is the name for HPO42-? | A) | hydrogen phosphorus oxide ion | D) | phosphite ion | B) | hydrogen phosphate ion | E) | hydrogen phosphite ion | C) | phosphate ion | | |
7. | Calculate the [H+] in a solution that has a pH of 9.00. | | A) 1.0 105 M B) 1.0 10–9 M C) 10.0 108 M D) 1.0 10–7 M E) none of these |
8. | The number 2.00152 rounded to four significant figures is | | A) 2.152 B) 2.000 C) 2.002 D) 2.001 E) none of these |
9. | A 5.10-g sample of iron is heated from 36.0oC to 75.0oC. The amount of energy required is 89.54 J. The specific heat capacity of this sample of iron is | | A) 2.22 J/g oC B) 0.158 J/g oC C) 1.78 104 J/g oC D) 0.234 J/g oC E) 0.450 J/g oC |
Use the following to answer question 10:
Identify the major attractive force in each of the following molecules.
10. | CO | | A) hydrogen bonding B)
Ignore: 5, 7, 19, 30
1. | How many grams of CaCl2 (molar mass = 111.0 g/mol) are needed to prepare 4.44 L of 0.500 M CaCl2 solution? | | A) 369 g B) 271 g C) 258 g D) 296 g E) 246 g |
2. | An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of lead(II) nitrate.The complete ionic equation contains which of the following species (when balanced in standard form)? | | A) B) C) D) E) |
3. | An example of a mixture is | | A) the air in this room B) gold C) hydrogen fluoride D) purified water E) all of these |
4. | When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type?Pb(NO3)2 + K2CO3 PbCO3 + KNO3 | | A) 1 B) 5 C) 4 D) 3 E) 2 |
5. | A solution has a pH of 3.28. The pOH of this solution is | | A) 10.72 B) 10.62 C) 3.28 D) 3.38 E) none of these |
6. | What is the name for HPO42-? | A) | hydrogen phosphorus oxide ion | D) | phosphite ion | B) | hydrogen phosphate ion | E) | hydrogen phosphite ion | C) | phosphate ion | | |
7. | Calculate the [H+] in a solution that has a pH of 9.00. | | A) 1.0 105 M B) 1.0 10–9 M C) 10.0 108 M D) 1.0 10–7 M E) none of these |
8. | The number 2.00152 rounded to four significant figures is | | A) 2.152 B) 2.000 C) 2.002 D) 2.001 E) none of these |
9. | A 5.10-g sample of iron is heated from 36.0oC to 75.0oC. The amount of energy required is 89.54 J. The specific heat capacity of this sample of iron is | | A) 2.22 J/g oC B) 0.158 J/g oC C) 1.78 104 J/g oC D) 0.234 J/g oC E) 0.450 J/g oC |
Use the following to answer question 10:
Identify the major attractive force in each of the following molecules.
10. | CO | | A) hydrogen bonding B)