usually increases
as temperature increases, solubility of solids in liquids
using larger pieces of solid
which of the following does not increase the rate of dissolving a solid in water?
electrolyte
a substance whose water solution is a good conductor of electricity is an
build up in the solvent near the solute
if a solution is not agitate while it is veing made, dissolved solute tends to
whole wheat bread
which of the following is a heterogeneous mixture?
not related to solubility
the rate of dissolution is
sodium chloride
which of the following is an electrolyte?
decreases
as temperature increaes, solubility of gases in liquids
unsaturated
if the amount f soulute present in a solution at a given temperature is less than the maximum amount that can dissolve at that temperature,m the solution is said to be
the enthalpy of soulution is posityve
increasing temperature favors dissolution when
ionize in water
suvstance whose water solutions conduct electricity easily
dispersed phase
the colloidal particle in a colloid from the
a gas and a liquid
a foam is a coloidal dispersion of
forming solute-solvent attraction
which of the followin releases energy?
soil
all of the following are homogeneous mixtures except
must be determined exprimentally
solubilities, expressed as grams/100. g of water,
tap water
all of the following are heterogeneous mixtures except
one mole of CaCl for every liter of solution
a molar solution of CaCl contains
one substance will form a soultin with another
like dissolves like" is a very general rule used for predicting whether
it is probably saturated
a solute crystal is droppend into a soution containg dissolved solute. it falls to ther bottom of the veaker and oes not dissolve after vigorous stirrin. what does this indicate about the solution?
powered sugar in hot water
which of the following will dissolve most rapidly?
neither a nor b
which of the following is expressed in grams of solute instead of moles of solute?
absorbs energy as heat and has positive enthalpy of solution
an endothermic dissolution process
will not form a solution
two immiscible substances
water
which of the following is an example of a polar solvent?
nonelectrolyte
a substance whos water solution is a poor coductor of electricity is a
toluene
which of the following is an example of a nonpolar solvent?
polarity
in the expression "like dissolves like" the word like refers to similarity in molecular
can either absorb or release energy as hear
the formation of slid-liquid solution
solutions and colloids
the tyndall effect is used to distinguish between
potassium nitrate
which of the following is soluble in water?
sugar water
which is not an example of a colloid?
a solution
which of the following is a homogeneous mixture of substanes in a single phase?
increases the rate of dissolution
raising the collision rate vetween soluteand solvent
increases the rate of dissolution
increasing the surface area of the solute
decreasing the temperature
which of th following decreases the average kinetic energy of solvent molecules?
large salt crystals in unstirred water
which of the following will dissole most slowly?
salt water
which mixtrue is made up of the smallest particles?
kilojoules per ole of solute a a specified temperature
enthalpy of solution is generally expressed in
alloy
a metal solution is an
gas-gas
oxygen in nitrogen is an example of which solute-solvent combination?
increases wth increasin pressure
the soluvility of gases in liquids
pressure to gas-liquid solubility
henry's aw relates
forms ionic bonds with ions in ionic compoiunds
in a solution, the slightly charge part of water molecule
liquid-gas
water in air is an example of which solute-solvent combination?