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(Ch. 8) Mole Road & Yields
(Ch.9) Electron Configurations
(Ch. 10) Lewis Dot & Shapes
(Ch. 11) PV=nRT
(Ch.12)
100
Suppose a computer manufacturer can build circuit boards according to the following process: 12 resistors + 20 insulators + 8 memory chips → 4 circuit boards. How many circuit boards could you make using 30 insulators, assuming you have enough of all the other parts?
What is 6 circuit boards?
100
How many valence electrons are in a chlorine atom?
What is 7?
100
How many lone electron pairs does the SH (-1 charged) polyatomic anion have?
What is three?
100
On Pluto, 2.78 moles of a gas fills a 1.85 L container with a pressure of 74.1 kPa and a temperature of -75°C. What is the value of the ideal gas constant on this planet?
What is 0.00246 L*atm / mol * K
100
The measure of the resistance to the flow of a liquid is called:
What is viscosity?
200
True or false: Given the following generic equation, 2 A + 3B → A2B3 △H rxn = +444 kJ, if you completely reacted 1 mole of compound A, the amount of heat absorbed would be 222 kJ.
What is true?
200
If the electron configuration of a ground state potassium atom is 1s2 2s2 2p6 3s1, the electron configuration of the potassium cation (K+) would be:
What is 1s2 2s2 2p6?
200
How many valence electrons are in the nitrate ion?
What is 24 valence electrons?
200
What is the final pressure of a system (atm) that has the volume increased from 0.75 L to 4.0L with an initial pressure of 1.25 atm?
What is 0.23 atm?
200
A 250 gram sample of water at the boiling point had 35.0 kJ of heat added. How many grams of water were vaporized? Heat of vaporization for water is 40.6 kJ/mole.
What is 15.5 g?
300
Consider the following equation: CO + 2 H2 → CH3OH △H rxn = -128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2.
What is -256kJ?
300
The n = ________ principal shell is the lowest that may contain a d-subshell.
What is 3?
300
How do you calculate formal charge?
What is # of valence - dots - lines = FC?
300
What is the final volume (L) of a 10.0 L system that has the pressure quadrupled?
What is 2.5?
300
How many joules of heat are needed to completely vaporize 24.40 grams of water at its boiling point? Given ΔHvap = 40.6 kJ/mol
What is 5.5x10^4?
400
Hydrochloric acid reacts with barium hydroxide according to the equation: 2 HCl (aq) + Ba(OH)2 (aq) → BaCl2 (aq) + 2 H2O (l) ΔH = -118 kJ Calculate the heat (in kJ) associated with the complete reaction of 18.2 grams of HCl (aq).
What is -29.5kJ?
400
What is the trend for ionization energy? Atomic radius?
What is increases up and to the right? And atomic radius is the exact opposite!
400
When a molecule has three electron groups with none of them lone pairs, the molecular geometry will be
What is trigonal planar?
400
What is the volume (in liters) of 1.00 mole of helium gas that has a pressure of 760. mm Hg and a temperature of 33.0°C? (R= 0.0821 L atm/ mol K)
What is 25.1L?
400
How many kJ of heat are needed to completely melt 2.90 moles of H2O, given that the water is at its melting point? The heat of fusion for water is 6.02 kJ/mole.
What is 17.5 kJ?
500
If the theoretical yield of the reaction below corresponds to 71.0 g and the percent yield of the reaction is known to be reproducibly 81.1%, calculate the actual yield. Given: Li2O+H2O→2LiOH
What is 57.6g?
500
What is the electron configuration of Cr?
What is 1s2 2s2 2p6 3s2 3p6 4s1 3d5?
500
What is the molecular geometry if you have a double bond, a single bond and 1 lone pair around the central atom?
What is bent?
500
What is the volume of 28.0 g of nitrogen gas at STP?
What is 22.4L?
500
Gaseous water vapor can frost the windows of a car on a cold morning. This process of a gas changing directly into a solid is known as
What is deposition?