2AP CHEM JEOPARDY Structure of Matter States of Matter Physical ChemistryChemicalBondingChemicalReactions$100$100$100$100$100$200$200$200$200$200$400$400$400$400$400$800$800$800$800$800$1000$1000$1000$1000$1000$1500$1500$1500$1500$1500$2000$2000$2000$2000$2000
17States of Matter $200Under what conditions would a substance sublimate at room conditions (25 °C and 1 atm)?A) the critical temperature must be below the triple pointB) the slope of the fusion line should be negativeC) the triple point must be at a pressure greater than 1 atmand 25°CD) the solid phase must be more dense than the liquid phase
18States of Matter $400What would happen to the pressure of a gas if the temperature is tripled, the volume is doubled, and the number of gas molecules is quadrupled ?
19A) T x (1/3)(1/2)(1/4)B) T x (3/1)(2/1)(4/1)C) T x (3/1)(1/2)(4/1)D) T x (3/1)(1/2)(1/4)
20Temp. is tripled P = kTVolume is doubled P=k(1/V)Moles is quad. P = kn
21States of Matter $800Is the slope for the solid/ liquid line in the phase diagram of water positive, negative, or can be either?
22The kinetic molecular theory predicts that at a given temperature... States of Matter $1000The kinetic molecular theory predicts that at a given temperature...
23A) All gases have the same KE B) All gas molecules have the samevelocityC) Only real gas molecules collidewith each otherD) On average, heavier molecules move more slowlyE) Elastic collisions result in the loss of energy.
24States of Matter $1500All of the following physical properties change as solute is added to the solution. Which is NOT a colligative property?A) Boiling Point D) Surface TensionB) Vapor Pressure E) Melting PointC) Osmotic Pressure
25Which of the following is most likely to be soluble in hexane? States of Matter $2000Which of the following is most likely to be soluble in hexane?A) KCl D) H2OB) C2H5OH E) C6H6C) HC2H3O2
26What is the free energy of a system at equilibrium? . . . Physical Chemistry $100What is the free energy of a system at equilibrium? . . .
27∆ G = equilibrium< 0 if spontaneous> 0 if non-spontaneous
28Physical Chemistry $200When ∆H is positive and ∆S is negative, will temperature changes have an effect on the spontaneity of a reaction?YES NO
29The rate of reaction will be large if: Physical Chemistry $400The rate of reaction will be large if:A) ∆G° is a large (-) numberB) ∆S° is a large (-) numberC) ∆H° is a large (-) numberD) Keq is a large (+) numberE) None of the above
30Physical Chemistry $800The Law of Dulong and Petit says that the molar specific heat of solid elements is approximately 25 J/mol•K. This suggests that. . .
31a) The heat absorbed depends only on the number of atoms b) the heat absorbed depends on the volume change with temperaturec) the heat absorbed can be calculated from the 1st Law of Thermodynamicsd) this law is an oddity since it does not apply to elements that are liquids / gases
32An inorganic catalyst doesn’t... Physical Chemistry $1000An inorganic catalyst doesn’t...A) Ensure proper geometryB) Weaken existing bondsC) Lose effectiveness when heatedD) Decrease the activation energy of a reaction
33Catalysts lower the activation energy of a reaction thus increasing the rate by ensuring proper geometry and weakening existing bonds in the molecule.Only ORGANIC catalysts are effected by a temperature change.
34What equation would you use to solve: Physical Chemistry $1500What equation would you use to solve:How much heat does it take to raise 10 grams of water by 10°C? . . .
41A molecule of NaHSO4 is . . . a) Acidic b) Basic c) Neutral Chemical Reactions $400A molecule of NaHSO4 is . . .a) Acidicb) Basicc) Neutral
42Na+ is neutral because it is the conjugate acid of a strong base. HSO4- is acidic because it can further produce H+ ions in solution (but it also has amphoteric properties).
43Chemical Reactions $800Which of the following compounds includes an element that has the same oxidation # as the chlorine in sodium chlorate, NaClO3?A) K3Fe(CN)6 D) (NH4) 2SO4B) KMnO4 E) KClO4C) Al(NO3)3
46A) reduction involves a gain of e- B) batteries are galvanic cellsC) a spontaneous reaction always has a (+) E°cellD) electrolysis reactions always produce a gas at at least one electrodeE) Galvanic cells can be used to determine equilibrium constants
47What will be the products of the following equation? Chemical Reactions $1500What will be the products of the following equation?FeCl2 + HCl + KMnO4 -->???
48(K+ and Cl- are spectator ions) FeCl2 + HCl + KMnO4 -->FeCl3 + MnCl2 + H2O + KClOx: Fe2+ --> Fe e-Red: MnO4 - + H+ --> Mn2+ + H2O(K+ and Cl- are spectator ions)
49The electrolysis of KI in water Chemical Reactions $2000Predict the net ionic equation for the following reaction and tell what form the reactants will be present . . .The electrolysis of KI in water
50Electrolysis of KI in water. (H2O has a E°red closer to zero than K+) Ox: 2 I- --> I e-Red: 2 H2O e- --> H OH-2 H2O I- --> H OH- + I2Electrolysis of KI in water. (H2O has a E°red closer to zero than K+)
51Structure of Matter $100Which of the following elements has the greatest number of p electrons?
56B) FeIt says UNFILLED sublevel. Since the 1st two quantum #’s are “3” and “2” that means an unfilled 3-d orbital. Fe is the only one with an unfilled 3-d orbital.
57Chemical Properties are defined by the: Structure of Matter $400Chemical Properties are defined by the:A) Electrons C) NeutronsB) Protons D) Ionization EnergyC) Electronegativity
58The best way to estimate the boiling points of Pd is to: Structure of Matter $800The best way to estimate the boiling points of Pd is to:A) average the b.p.’s of Rh and AgB) average the b.p.’s of Ni and PtC) average the b.p.’s of Ir and CuD) average the b.p.’s of Co and AuE) None of the above will work.
59Structure of Matter $1000In which of the following pairs of elements is the element with the lower boiling point listed first?A) Na, Cs D) Ba, SrB) Te, Se E) I, BrC) P, N
60States of Matter $1500Carbon-14 has a half-life of 5730 years. How old is a wooden object if 70% of the C-14 has decayed?A) yr D) yrB) yr E) yrC) yr
61Radioactive decay is a first order reaction therefore… Rate = kXln Xo = ktXLn X = k t 1/2Xln 2 = k t 1/2 ==> t 1/2 = 0.693/k
62Structure of Matter $2000An electron that falls from a higher energy level to n=3 emits a wavelength that fall in what “series?”