Chemical Quantities
What is the value of 1 mole?
6.02 x 10^23
What is a mole ratio?
Ratio between moles in a balanced equation
Boyle's Law: P up, V does what?
Goes down
Endothermic: Heat in or out?
Heat in
pH of an acid?
Less than 7
Standard Temperature and Pressure
What is a limiting reactant?
Reactant that runs out first
Charles' Law: T up, V does what?
Goes up
Exothermic: Heat in or out?
Heat out
Neutralization products?
Salt + Water
Volume of 1 mole of gas at STP?
22.4L
Define theoretical yield.
Maximum product possible
What unit must temperature be in?
Kelvin
Direction of heat flow?
Hot to cold
Bronsted-Lowry acid definition?
Proton donor
Define percent composition.
Percent by mass of each element in a compund
How do you find percent yield?
(Actual ÷ theoretical) x 100
What is the Ideal Gas Law?
PV = nRT
What is specific heat?
Heat needed to raise 1 g by 1°C
Electron emission
Difference between empirical and molecular formula?
Empirical = simplest ratio;
molecular = actual number of atoms
Can actual yield exceed theoretical? Why?
No; you cannot make more than the maximum possible
Combined Gas Law formula?
P1V1/T1 = P2V2/T2
What is enthalpy?
Heat content
Difference between fusion and fission?
Fission splits atoms; fusion combines atoms