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PAP 4/27- 4/28 Quiz Solubility

Quiz by Veronica Nickols

High School
Chemistry (2017)
Texas Essential Knowledge and Skills (TEKS)

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Measures 4 skills from
High School
Chemistry (2017)
Texas Essential Knowledge and Skills (TEKS)


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14 questions
Show answers
  • Q1
    What will happen to the ability of a gas to dissolve in a liquid if the temperature increases?
    The solubility of the gas is not affected
    The solubility of the gas increases
    The solubility of the gas increases or decreases
    The solubility of the gas decreases
  • Q2
    Which of the following would result in being able to dissolve a greater amount of gas in a solution?
    Heat the gas and solution
    Decrease the pressure of the solution
    Make the gas an eectrolyte
    Cool the gas and solution
  • Q3
    Which of the following would decrease the rate of solution when dissolving a solid in water?
    Stir the solution after mixing
    Crush the Solid before mixing
    Raise the temperature of the solution
    Use a single cube of solid
  • Q4
    Which of the following would increase the rate of dissolution of a solid in solution?
    Dry up the solvent
    Stir the solid and the solution
    Cool the solid and solution
    Cool only the solid
  • Q5
    Which of the following statements makes a valid conclusion regarding the graph above?
    Question Image
    At 10 degrees C, potassium nitrate has a greater solubility when compared to the solubility of sodium chloride
    At 30 degrees C, sodium chloride has a greater solubility when compared to the solubility of potassium chloride
    Temperature has a greater effect on the solubility of potassium nitrate compared to sodium chloride
    Temperature has a greater effect on the solubility of sodium chloride compared to potassium nitrate
  • Q6
    A student attended an event at a traditional tea room that offered sugar cubes instead of sugar packets. She added two sugar cubes to a cup of hot tea. After she finished drinking the tea, she was surprised to see two small chunks of undissolved sugar at the bottom of her cup. All the sugar dissolves in a tea of the same temperature when added from a packet. Which of the following BEST explains why sugar remains undissolved from cubes but not from packets?
    Unlike the packet, the cube is compacted and large in size so not all sugar molecule surface areas contact the tea
    Adding a cube decreases the likelihood of stirring the tea, where as adding a packet reminds people to stir
    The temperature of the tea with cubes was lower than the one with packets
    Unlike the teacup with cubes, tea with packets is served in a bigger cup that allows for more tea
  • Q7
    While stirring, solid table salt is added to a beaker of water until no more salt will dissolve and salt crystals are visible at the bottom of the beaker. When the beaker is heated, the crystals dissolve. The effect of heat in this situation -
    increased the polarity of the salt water
    increased the solubility of the salt crystals
    reacted with salt so it became water
    melted the salt crystals into a liquid
  • Q8
    A solution that contains the maximum amount of solute that is soluble at a given temperature is said to be a -
    unsaturated solution
    saturated solution
    supersaturated solution
    dilute solution
  • Q9
    A solution in which more solute is dissolved than is typically soluble at a given temperature is -
  • Q10
    Refer to the graph. 90 grams of sodium nitrate (NaNO3) is put into 100 grams of water and stirred. The final mixture has a temperature of 20 degrees C. About how many grams of the sodium nitrate dissolved?
    Question Image
  • Q11
    Why is water sometimes called the "universal solvent"?
    The adhesion level in H2O is very high
    Many substances dissolve in H2O
    The hydrogen bonding of H2O is very low
    The density of H2O is 1.0 g/cm3
  • Q12
    Students are asked to make statements about the solubility graph above. Which student does the best job of communicating the general features of the graph?
    Question Image
    Student A: Most salts require 100 grams of water in order to dissolve completely
    Student C: The solubility of most salts increases with increasing temperature
    Student D: Most curves show a decreasing slope as the temperature rises
    Student B: Table salt has the average solubility of all salts
  • Q13
    Refer to the graph above. In order to have a saturated solution, how many grams of potassium nitrate, KNO3, need to be dissolved in 100 grams of water at 20 degrees C?
    Question Image
  • Q14
    Which two factors must be considered when predicting whether two substances will dissolve in each other?
    number of bonds and molecular shape
    number of bonds and size of the molecules
    type of bonds and size of the molecules
    Type of bonds and molecular shape

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