acid strength + concentration

Cards (10)

how can the strength of an acid be determined?
depending on how many ions they produce when they dissolve in water
what is dissociation?
when molecules, usually ionic, split up into smaller particles or ions in aqueous solution
this is usually a reversible process and the particles can recombine under different conditions
what happens when HCl and H2SO4 are added in water?
they dissociate completely in water
produces solutions with a high concentration of H+ ions and thus a very low pH
what happens to CH3COOH and hydrofluoric acid in water?
it is only partially ionize in water
producing solutions of pH values between 4-6
what is an equilibrium reaction?
a reaction that does not go to completion and in which reactants and products are present in fixed concentration ratios
how is a solution formed?
when a solute is dissolved in a solvent
what does a dilute solution contain?
a small amount of solute in a given volume of solution
what happens in a concentrated solution?
contains a large amount of solute in a given volume of solution
T or F
concentrated solutions contain few amounts of acid or base molecules
F - they contain a lot of acid or base molecules
does dilute acid or base solution contain more or fewer molecules than a concentrated solution?
fewer