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Stoichiometry
Matter
Gas Laws
Solutions & Solubility
Acids & Bases
100
Stoichiometry
What is a branch of chemistry that deals with the relative quantities of reactants and products in chemical reactions.
100
Four different, common, states of matter.
What is solid, liquid, gas, and plasma?
100
Name three common laws.
What is Boyle's law, Charles's law, Gay-Lussac's law, Avogadro's law
100
Ionic solution
What is an electrolyte found in a raw, natural form.
100
A substance which when added to water produces hydroxide ions [OH-].
What is a base
200
How many moles of sodium atoms correspond to 1.56x1021 atoms of sodium?
What is 2.59x10^-3M Na atoms
200
The most common state of matter on Earth.
What is liquid?
200
An ideal gas at constant pressure, the volume is directly proportional to its temperature.
What is Charles Law
200
Define solutions.
Anything close to: A solution is a mixture of two or more substances in a single phase. At least two substances must be mixed in order to have a solution.
200
Substance which when added to water produces hydrogen ions [H+].
What is an acid
300
How many moles of Hv2 and Nv2 can be formed by the decomposition of 0.145 mol of ammonia, NHv3? v=subscript
What is 0.0725mol Nv2 and 0.218mol Hv2
300
Supercritical Fluids
When a gas is compressed until it starts to condense into a liquid displaying a clear boundary between the liquid at the bottom of the container and the gas. Anything close acceptable.
300
At constant temperature, the product of an ideal gas's pressure and volume is always constant
What is Boyle's law
300
Define a SOLUTE
What is the substance in the smallest amount and the one that dissolves or disperses. Anything close to is acceptable.
300
KW = [H+][OH-] / [H2O]
What is equilibrium constant
400
Write the equation that expresses in acceptable chemical shorthand the following statement: “Iron can be made to react with molecular oxygen (Ov2) to give iron oxide with the formula Fev2Ov3” v=subscript
What is 4Fe + 3Ov2 > 2Fev2Ov3
400
The sun.
What is plasma.
400
A sample of carbon dioxide occupies a volume of 3.50L at 125 kPa pressure. What pressure would the gas exert if the volume was decreased to 2.00L
(3.50L)(125kPa)=(2.00L)x 219kPa
400
Can non-polar solutes dissolve in polar solutes?
No
400
if [H+] is greater than 1 x 10^-7 M ^=superscript
What is acidic
500
The reaction of powdered aluminum and iron(II)oxide, 2Al(s) + Fev2Ov3(s) > Alv2Ov3(s) + 2Fe(l) produces so much heat the iron that forms is molten. Because of this, railroads use the reaction to provide molten steel to weld steel rails together when laying track. Suppose that in one batch of reactants 4.20mol Al was mixed with 1.75mol Fe2O3. a. Which reactant, if either, was the limiting reactant? b. Calculate the mass of iron (in grams) that can be formed from this mixture of reactants. v=subscript
What is a.) limiting reactant is Fev2Ov3 b.) 195g Fe is formed
500
A black hole.
What is gas.
500
A sample of oxygen gas occupies a volume of 250mL at 740 torr pressure. What volume will it occupy at 800 torr pressure?
(250mL)(740torr)=x(800torr) 231mL
500
1. PbSO^4 (s) <---> Pb^+2 (aq) + SOv4^-2 (aq) [Pb^+2] = 2.0 x 10^-5 M Find the value of Ksp. v=subscript ^=superscript
What is 4.0 x 10^-10
500
Calculate the pH for each of the following solutions: a) [H+] = 1E^-3 b) [H+] = 1E^-9 c) [OH-] = 1E^-5 d) pOH = 5.5 ^=superscript
What is a) 3.0 b) 9.0 c) 9.0 d) 8.5