Card Set Information
a pressure of 720 mm hg equals what in torr and pascals?
according to avagadro's law, 1L H
and 1L O
at the same temp and pressure have what in common?
same # of molecules
when solutions of 2 ionic compounds are combined and a solid forms, what it called?
ions are formed from solute molecules by the action of the solvent in a process called what?
name some weak electrolytes
electrolytes have a greater effect on freezing point depression than non-electrolytes because electrolytes
product solutions are more
as electrolyte concentration decreases, freezing-point depression
name some binary acids
HF, HCl, HBr
binary acids begin with what?
which acid is manufacture in the largest quantities?
which acid turns yellow on standing?
Arrhenius theorized that a base is a chemical compound that increases the concentration of _____ when dissolved in water
A species that remains when an acid has lost a proton is a
possible reactants in a neutralization reaction?
what symbol in a chemical equation indicates equilibrium?
If a soluble product forms, the reaction may run to completion if what things happen?
gas bubbles, slightly ionized, precipitate
adding a charged particle common to 2 solutes decreases solute concentration. what is this?
common ion effect
ion-product constant for water?
according to KMT, what makes particles move close to each other?
what assumption of the KMT is not true for non-ideal (real) gasses?
no forces between particles
enthalpy of change is the
energy absorbed as heat
enthalpy of a solid is more or less than that of a liquid?
what is the symbol for entropy?
name substances with high entropy?
symbol for free-energy change?
in (triangle)G calculations, temp is expressed in what?
most steps in a reaction mechanism are complex or not?
is energy released or absorbed?
term with same numerical value for forward reaction and reverse?
how do products, reactants, and activation energy relate in an endothermic reaction
activation > products > reactants
changing a gas's pressure is another way of changing its
rate laws relate which 2 ideas?
concentration of reactants and reaction rate
the slowest step is the
rate determining step
compounds with uniform arrangement?
heterogeneous mixtures contain how many substances and how are they distinguishable?
2 or more, visibly different
substances whose water solutions conduct electricity easily do what in water?
name a solvent for polar and nonpolar
polar - H20
nonpolar - nonionic something
increasing temp favors dissolution when enthalpy of solution is
expression that show PH of a solutoin?
to calculate the pH of a substance whose [HO-] is known, you must 1st calculate
in acid-base titration, equivalent quantities of hydrominium ions and hydroxide ions are present at what point in the titration?