quantitative chem Flashcards
avogadros constant
6.02 x 10^23
molar mass
the mass in grams of one mole of that substance
solution
a homogeneous mixture of solute and solvent
solute
substance that is dissolved in the solution
solvent
the substance in which another substance is dissolved in, forming a solution
molar concentration
the amount of solute per unit volume of solution
% yield
measure of the extent of a reaction
actual/theoretical x100
molar volume
general constant for gas
volume in dm^3 of one mole of any gas at STP
22.4
what happens during dilution
(volume addition)
no. of moles stays same
volume of soln increases
what happens during mixing
(mole+volume addition)
no. of moles of common particle increases
total volume increases
what happens when diff ions mixed together
moles of each ion species in mixture must be determined separately (dissociation)
synthesis reaction
2 simple substances combine to form a complex product
decomposition reaction
1 reactant produces 2 or more products
dissolution
solid placed in water breaks down into smaller particles surrounded by water molecules
dissociation
ionic salt further broken down into anions + cations in water
