CHM 111 THINGS YOU SHOULD ALREADY KNOW
1. CONVERT TO/FROM GRAMS, [P,V,T] TO MOLES
2. CONVERT TO/FROM F, C, K TEMPERATURES
3. PERIODIC TABLE AND TRENDS
4. EMPIRICAL MOLECULAR FORMULAS
5. NOMENCLATURE
6. STOICHIOMETRY, LIMITING REAGENT, THEORETICAL YIELD, % YIELD
7. REACTION TYPES
8. MOLARITY, NORMALITY, DILUTION, TITRATION
9. CALCULATING OXIDATION STATES
10. ELECTRONIC CONFIGURATION OF ATOMS AND IONS
11. CHEMICAL BONDING AND LEWIS STRUCTURES
12. GAS LAWS AND BEHAVIOR, STP
13. INTERMOLECULAR FORCES
14. ANALYTIC GEOMETRY, ALGEBRA, QUADRATIC EQUATIONS, AND LOGS AND EXPONENTS
IF YOU ARE UNCERTAIN ABOUT ANY OF THESE TOPICS PLEASE SEE APPENDIX A OF THE TEXT, TALK TO ME, AND VISIT THE TUTORIAL IN WM 111 BC OR AC 113 AC. ALSO FOR TI-8X,9X USERS PLEASE SEE MR PRITCHARD AC 131 FOR ALL THE PROGRAMS AVAILABLE.
QUIZ 1 CHM 111 NAME ___________
1. For the following equation: Ax + By + C = 0
A. This is an equation of a(n) __________________.
B. Solve this equation for y.
C. What are the coordinates of the x and y intercepts of this equation?
D. What is the slope? If this equation represents something that has a slope, find it.
2. For the following equation: Ax2 + Bx + C = f(x)
A. This is an equation of a(n) __________________.
B. Solve this equation for y.
C. What are the coordinates of the x and y intercepts of this equation?
D. Find the coordinates of the vertex.
3. FOR THE FOLLOWING: c = 299,792,458.0 m/s
A. What is c in km/s?
B. What is c in nm/s?
C. Write c in scientific notation to 4 significant digits.
D. What are the values of
log10(c) =
ln (c3) =
E.
The ln(e5) = ?
The log10(1) =
A dozen gross moles of anything is equal to what number?
Hint: 1 gross = 144
4. ENERGY
A. The basic SI unit of energy is the ___________?
B. List two types of energy and the equations that define them.
C. T/F Are heat, work, light, and mass interchangeable and conserved?
D. T/F Covalent bonds in general require more energy to break than ionic bonds.
5. FOR THE FOLLOWING EQUATION:
PCl3 (g) + Cl2 (g) ó PCl5 (g)
If 4.00 atm of PCl3 (g) and 6.00 atm of Cl2 (g) were reacted in a 750 L at 500 C.
A. What are the oxidation states of P and Cl in PCl3, Cl2, and PCl5 ?
B. What is the limiting reagent?
C. How much PCl5 (g) is formed in atm, moles, and in kg? What is the molarity of the PCl5 (g) formed?
D. What are the pressures of all the gases after the reaction is completed?
FOR THE FOLLOWING EQUATION:
PCl3 (g) + Cl2 (g) ó PCl5 (g)
If 4.00 atm of PCl3 (g) and 6.00 atm of Cl2 (g) were reacted in a 750 L at 500 C.
E. What is the density of the remaining gases in the mixture after the reaction is completed? What is the density of the gas mixture after the reaction is completed?
F. What is the percent yield of the reaction if only 6000.0 g of PCl5 (g) are formed.
6. MATTER AND INTERMOLECULAR FORCES
A. List three states of matter.
B. Describe and explain the differences between an element, compound, mixture, and solution?
C. Describe and explain the differences between a chemical and a physical change.
D. Describe 4 types of intermolecular forces and list them in descending order from strongest to weakest
7. SINGLE COMPONENT DIAGRAMS
A. Draw a heating curve for water. Label the fp and bp. What values are used to calculate the amount of energy required to melt or boil a given mass of water?
B. Draw a single component phase diagram. Label the areas for solid, liquid, and gas. Label the lines for the s ó g, s ó l, and l ó g equilibria. Label the location of the triple point and critical pressure.
C. What is the vapor pressure of any substance at its boiling point?
8. FOR THE FOLLOWING EQUATION:
N2 (g) + 2O2 (g) ó 2NO2 (g)
If 4.00 atm of N2 (g) and 6.00 atm of O2 (g) were reacted in a 1750 L at 400 C.
A. What are the oxidation states of N and O in N2, O2, and NO2 ?
B. What is the limiting reagent?
C. How much NO2 (g) is formed in atm, moles, and in kg? What is the molarity of the NO2 (g) formed?
D. What are the partial pressures of all the gases after the reaction is completed?
FOR THE FOLLOWING EQUATION:
N2 (g) + 2O2 (g) ó 2NO2 (g)
If 4.00 atm of N2 (g) and 6.00 atm of O2 (g) were reacted in a 1750 L at 400 C.
E. What is the density of the remaining gases in the mixture after the reaction is completed? What is the density of the gas mixture after the reaction is completed?
F. What is the percent yield of the reaction if only 6000.0 g of NO2 (g) are formed.
9. TEMPERATURE SCALES
A. At what temperature are the Celsius and Fahrenheit scales exactly same?
B. What is absolute 0 in C, F, and K?
C. What is standard temperature in C, F, and K?
10. ENTHALPY, HEAT, AND WORK
A. Using the tables in your book find the heat of vaporization for PCl3
B. How much heat is required to evaporate 2 mol of PCl3(l)?
C. Using the tables in your book find the heat of reaction for problem 5.
Hf [PCl5 (g)] = -360.1842 kJ/mol
D. Is the reaction forming PCl5 (g) exothermic or endothermic? Why?
E. What is heat? What is work?