QUIZ 5: CHAPTER REVIEW

The following are the main assumptions of the Kinetic Molecular Theory of gases: 1. Gases are made up of molecules which are relatively far apart.2. The molecules are in motion at high speeds.3. The molecules are perfectly elastic.4. Increase in temperature increases the kinetic energy of the molecules. The assumption that accounts for the great compressibility of gases compared to liquids and solids is: 1 2 3 4 none of the above

1

One mole of N2 gas at STP will occupy what volume? 44.8 L 22.4 L 44.2 L 88.4 L none of the above

22.4 L

What is the value of Avogadro's number? 2.063 x 10 23 6.026 x 10 26 6.023 x 10 23 2.036 x 10 36

6.023 x 10 23

1. low energy 2. matter is continuously in motion 3. rapid, random motion 4. relates pressure and volume 5.relates volume and temperature

1. solid 2. Kinetic Molecular Theory 3. gas 4.Boyle's Law 5. Charles's Law

A molecule of Al2(SO4)3 contains: 6 Al atoms 12 S atoms 4 O atoms 12 O atoms

12 O atoms

The atomic mass of N is 14.01 g/mol, and the atomic mass of H is 1.008 g/mol. What is the molecular mass of NH3? 17.03 g/mol 15.018 g/mol 14.12 g/mol 45.054 g/mol

17.03 g/mol

Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1." ____C4H10 + _____ O2 → ______CO2 →______H2O

2 13 8 10

Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1." ____Sb + ____Cl2 →____SbCl3

2 3 2

Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1." ____Al + ___ZnCl2 → _____Zn + _____AlCl3

2 3 3 2

Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1." __ Al +___HCl →______AlCl3 +____H2

2 6 2 3

The following are the main assumptions of the Kinetic Molecular Theory of gases: 1. Gases are made up of molecules which are relatively far apart.2. The molecules are in motion at high speeds.3. The molecules are perfectly elastic.4. Increase in temperature increases the kinetic energy of the molecules. The assumption that explains Charles's Law is: 4 1 2 3

4

Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1." _____NH3 + _______O2 → ________N2 + ______H2O

4 3 2 6

Carbon disulfide burns with oxygen to form carbon dioxide and sulfur dioxide in the following manner: CS2 + 3 O2 CO2 + 2 SO2 What is the volume of sulfur dioxide (SO2 gas) formed when 2.00 moles of carbon disulfide (CS2) are burned? The reaction is taking place at STP. 44.8 liters 5.6 liters 22.4 liters 89.6 liters

89.6 liters

The reaction 4Fe + 3O2 2Fe2O3 represents: a phase change a conservation of atoms a conservation of moles an unbalanced equation

a conservation of atoms

Choose the incorrect answer below concerning absolute zero. is equal to 0 K lowest possible temperature is equal to 0°C theoretical temperature at which gas molecules have no kinetic energy

is equal to 0°C

The formula of a compound indicates all of the following except: the number of atoms the symbols for the atoms the arrangement of the atoms in the molecule the ratio of atoms in a compound

the arrangement of the atoms in the molecule

Whether a substance is a gas, liquid, or solid is dependent on the natural attractive forces between molecules and the collisions between the molecules. the kinetic energy of the molecules. how the molecules collide with the container. the extent of molecular motion as determined by the average KE and temperature.

the collisions between the molecules. the extent of molecular motion as determined by the average KE and temperature.