WorksheetsUnit 5: Gases, Acids/Bases, Solutions
Total questions: 21
Worksheet time: 19mins
A student has 3 beakers of 100 grams of water. In one beaker she puts 3 teaspoons of sugar. In the next she puts 2 teaspoons of sugar. In the last she puts 1 teaspoon of sugar. Which beaker will be the most concentrated?
1 teaspoon of sugar
2 teaspoons of sugar
3 teaspoons of sugar
they will have the same concentration
The sugar in sweet tea would be considered the _______________ in the solution.
solid
solute
solution
solvent
If you taste a substance that tastes sour, the pH is probably...
0
7
below 7
above 7
Put the following items in order from highest pH to lowest pH.
baking soda, coke, water
baking soda, water, coke
coke, water, baking soda
water, coke, baking soda
water, baking soda, coke
Based on the chart, which of the acids would be the best conductor of electricity?
HCl
NH3
NaOH
KOH
Which substances listed would turn a red litmus paper blue? (use scale)
HCl
Saliva
Distilled water
Bleach
If you test a substance that turns a blue litmus paper red, but doesn't change the color of the red litmus paper, what type of substance do you have?
base
neutral
acid
pH of 14
Which of the following will usually increase the rate that a substance dissolves?
increase temperature
stir
smaller particles
all of the above
Select all of the following that would be characteristics of a strong acid.
Sour taste
bitter taste
strongly conducts electricity
makes soap
forms hydrogen ions
Select all of the following that would be characteristics of a strong base.
Sour taste
bitter taste
strongly conducts electricity
makes soap
forms hydroxide (OH-) ions
What happens to the volume of a gas if the temperature increases?
volume decreases
volume increases
doesn't affect volume
pressure decreases
Why does pressure increase if the temperature increases?
increase in temperature means more motion of particles which exerts more pressure on the container
increase in temperature means less motion of particles which exerts less pressure on the container
decrease in temperature means more motion of particles which exerts more pressure on the container
there is no relationship between temperature and pressure
What is the relationship between temperature and volume?
if temperature decreases, volume increases
if temperature increases, volume decreases
if temperature decreases, volume decreases
there is no relationship between temperature and volume.
Which term means the substance that is being dissolved by a solvent.
solute
solvent
supersaturated
unsaturated
concentration
Which term means the substance that dissolves the solute.
solute
solvent
supersaturated
unsaturated
concentration
Which term means a measurement of the amount of solute that is dissolved in a given quantity of solvent; usually expressed as mol/L.
solute
solvent
supersaturated
unsaturated
concentration
Which term means a solution that contains less solute than a saturated solution at a given temperature and pressure.
solute
solvent
supersaturated
unsaturated
concentration
Which term means a solution that contains more solute than it can theoretically hold at a given temperature; excess solute precipitates if a seed crystal is added.
solute
solvent
supersaturated
unsaturated
concentration
Which of the following statements would be true (select all that are true)?
adding more water to instant coffee will make the coffee a darker color
to decrease the concentration of a solution, add more liquid
to increase the concentration of a solution, add more solute
to dilute means adding less water to make a higher concentrated solution
Based on the solubility graph, which substance is the most soluble at 60 degrees celcius?
NaCl
KBr
KNO3
NaClO3
Based on the solubility graph, which substance is the least soluble at 120 degrees celcius?
NaCl
KBr
KNO3
NaClO3
