Cold water vs hot water- what will oxygen gas and salt do in each as far as solubility
Front
In cold water the oxygen will break down faster and the salt will break down slower and in hot water the oxygen molecules will break down slower and the salt will break down faster
Back
A clear, green liquid is sitting in a beaker. When a beam of light is aimed through the beaker, the beam cannot be distinctly seen in the liquid. What kind of liquid is this
Front
Solution
Back
Compared to the specific heat of most other materials, the specific heat of water is
Front
Much higher
Back
In 100 grams of a 25% sugar solution by mass, there are
Front
25 grams of sugar and 75 grams of water
Back
capillarity
Front
tendency of liquids to rise in tubes of narrow diameter
Back
The states in which water occurs on earth
Front
Liquid, solid, gas
Back
When a solid composed of ions is mixed with a liquid solvent made up of polar molecules, the solid should
Front
Dissolve because particles present carries some charge
Back
In comparison with covalent bonds, hydrogen bonds are
Front
A weak bond between two molecules
Back
If we dissolve 50 grams of KNO3 in 100 grams of water at 50 C, how many additional grams of potassium nitrate must be added at this temperature to produce a saturated solution
Front
85/100 = 50/x. 5000/85
X=
Back
tyndall effect
Front
involve scattering light
Back
O-H......O-H
Front
hydrogen bond
Back
Why is water often called the universal solvent
Front
Because it dissolves thousands of different solvents
Back
homogenous
Front
uniform throughout
Back
When a given amount of solvent is holding all of the solutes possible at a given temperature, we call the solvent
Front
Saturated
Back
temperature
Front
generally increases solubility
Back
The water molecule is
Front
Polar and has polar bonds
Back
A fish needing cool water and unable to tolerate warm water is the
Front
Trout
Back
A concentration of 25 pph could also be expressed as
Front
25%
Back
Example of heterogenous mixture
Front
Italian dressing
Back
What mass of sodium nitrate, (NaNO3), will dissolve in 100 grams of water at 15 C
Front
85 grams
Back
No polar solvents are the most effective solvents for
Front
Nonpolar solutes
Back
Water seldom appears in a pure state on earth because it tends to
Front
Dissolve other substances
Back
nonpoar
Front
force needed to overcome the attraction among molecules at the surface of a liquid.
Back
Compared to its height in a wide-diameter tube, the height of a column of water in a narrow-diameter tube will be
Front
Greater
Back
The physical property of ice that allows aquatic organisms to survive over the winter is
Front
It's low density
Back
Which of these factors don't affect the overall amount of solute that can be dissolved in a solution
Front
Stirring which causes a decrease in particle size
Back
heterogenous
Front
not uniform throughout
Back
In a solution of salt in water, salt is called
Front
The solute
Back
During cooling from 50 c to 0 c, the density of water
Front
First increases, then decreases
Back
The skinlike quality of the surface of water is caused by waters
Front
Surface tension
Back
unstable
Front
supersaturated solution property
Back
gases in water solutions
Front
are more soluble at lower temperatures
Back
If the instructions on a bottle say " shake before using", the material inside a probably a
Front
Suspension
Back
Which solute shows the least change in solubility with an increase in temperature
Front
Sodium chloride
Back
surface tension
Front
atoms share the electrons evenly in molecule
Back
precipitate
Front
solid that comes out of solution and settles out
Back
polar
Front
one end is slightly negative, the other end is slightly positive
Back
A dilute solution could also be classified as
Front
A unsaturated solution
Back
In a solution of pepper and water, pepper is called the
Front
Pepper
Back
If 20 grams of sugar is dissolved in 160 grams of water, what is the concentration of the solution in ppt
Front
20/180 x 100 = 11.11% = 111ppt
Back
saturated
Front
solution that contains all of a solute tat can dissolve at a given temperature
Back
What is the relationship between pressure and solubility for a gas dissolved in al liquid
Front
As pressure increases solubility increases, as pressure decreases solubility decreases