Section 1

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Cold water vs hot water- what will oxygen gas and salt do in each as far as solubility

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Last updated

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Date created

Mar 1, 2020

Cards (45)

Section 1

(45 cards)

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

Back

moles of solute per liter of solution

Front

definition of molarity

Back

For gases

Front

Solubility decreases as temperature increases

Back

colloids

Front

contins particles larger than those in solutions

Back