Regents Chemistry Solutions

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Etucci
E
Etucci
Community Contributor
Quizzes Created: 2 | Total Attempts: 4,121
| Attempts: 3,884
SettingsSettings
Please wait...
  • 1/12 Questions

    A solution that has some solid dissolved but could have more added to it is said to be:

    • Unsaturated
    • Saturated
    • Supersaturated
Please wait...
About This Quiz

This quiz covers content of the New York State Regents Chemistry Curriculum.

Regents Chemistry Solutions - Quiz

Quiz Preview

  • 2. 

    As temperature increases, solubility of most solids

    • Increases

    • Decreases

    • Remains the same

    Correct Answer
    A. Increases
    Explanation
    As temperature increases, the kinetic energy of the solvent molecules also increases. This increased kinetic energy allows the solvent molecules to move more quickly and collide with the solute particles more frequently and with greater force. This leads to the breaking of intermolecular forces between solute particles and the dissolution of the solute in the solvent. Therefore, the solubility of most solids tends to increase with increasing temperature.

    Rate this question:

  • 3. 

    PPM is a way to measure concentration.  It stands for:

    • Particles per molarity

    • Parts per million

    • Parts per molarity

    • Pandas please move

    Correct Answer
    A. Parts per million
    Explanation
    PPM stands for parts per million, which is a unit used to express the concentration of a substance in a solution. It represents the number of parts of a particular substance present in one million parts of the solution. This unit is commonly used in various fields such as environmental science, chemistry, and industry to measure the concentration of pollutants, chemicals, or impurities in a given sample.

    Rate this question:

  • 4. 

    A solution that has the maximum amount of solid dissolved at a certain temperature is said to be:

    • Unsaturated

    • Saturated

    • Supersaturated

    Correct Answer
    A. Saturated
    Explanation
    A solution that has the maximum amount of solid dissolved at a certain temperature is said to be saturated. This means that the solution has reached its maximum capacity to dissolve the solid and any additional solid added will not dissolve. The concentration of the dissolved solid is at its highest possible level in a saturated solution.

    Rate this question:

  • 5. 

    The solvent is the part of the solution that

    • Gets dissolved

    • Does the dissolving

    • Changes phase

    Correct Answer
    A. Does the dissolving
    Explanation
    Water is a good solvent, several things can dissolve IN water.

    Rate this question:

  • 6. 

    As temperature increases, solubility of most gases

    • Increases

    • Decreases

    • Remains the same

    Correct Answer
    A. Decreases
    Explanation
    As temperature increases, the solubility of most gases decreases. This is because an increase in temperature causes the gas particles to gain more kinetic energy, leading to increased movement and decreased attraction to the solvent molecules. As a result, the gas molecules are more likely to escape from the solvent, reducing the solubility.

    Rate this question:

  • 7. 

    According the reference table G, the amount of NH3 that can be dissolved in 200g of water at 30oC is

    • 55g

    • 110 g

    • 27.5 g

    • 200 g

    Correct Answer
    A. 110 g
    Explanation
    If you double the amount of water, you double the amount of solute that can be dissolved.

    Rate this question:

  • 8. 

    When a solution is formed, which of the following results? There are 2 right answers! Choose them BOTH!

    • The solution has a higher boiling point than the solvent alone.

    • The solution has a higher freezing point than the solvent alone.

    • The solution has a lower boiling point than the solvent alone.

    • The solution has a lower freezing point than the solvent alone

    Correct Answer(s)
    A. The solution has a higher boiling point than the solvent alone.
    A. The solution has a lower freezing point than the solvent alone
    Explanation
    When a solute is added to a solvent to form a solution, it disrupts the regular arrangement of solvent molecules, making it more difficult for the solvent to transition from a liquid to a gas phase. This leads to an increase in the boiling point of the solution compared to the boiling point of the pure solvent. On the other hand, the presence of the solute also interferes with the formation of solvent crystals during freezing, resulting in a lower freezing point for the solution compared to the freezing point of the pure solvent.

    Rate this question:

  • 9. 

    In a molarity calculation, moles of solute are divided by:

    • Grams of solvent

    • Kilograms of solvent

    • Liters of solvent

    • Liters of solution

    Correct Answer
    A. Liters of solution
    Explanation
    In a molarity calculation, moles of solute are divided by liters of solution. This is because molarity is defined as the number of moles of solute per liter of solution. By dividing the moles of solute by the volume of the solution in liters, we can determine the concentration of the solute in the solution.

    Rate this question:

  • 10. 

    A solution made by dissolving the maximum amount of solid at a higher temperature and then cooling the mixture to a lower temperature is said to be:

    • Unsaturated

    • Saturated

    • Supersaturated

    Correct Answer
    A. Supersaturated
    Explanation
    A solution made by dissolving the maximum amount of solid at a higher temperature and then cooling the mixture to a lower temperature is said to be supersaturated. This is because the solute is dissolved in excess at the higher temperature, and as the solution cools down, it becomes unable to hold all the solute particles. As a result, the excess solute precipitates out, creating a solution that is supersaturated with the solute.

    Rate this question:

  • 11. 

    Which of the following salts is insoluble according to table F?

    • NaNO3

    • K3PO4

    • Mg3PO4

    • Ba(OH)2

    Correct Answer
    A. Mg3PO4
    Explanation
    According to table F, Mg3PO4 is insoluble.

    Rate this question:

  • 12. 

    According to table G, what is the maximum amount of KNO3 that can be dissolved in 100 g H2O at 60oC?

    • 50 g

    • 110 g

    • 115 g

    • 85 g

    Correct Answer
    A. 110 g
    Explanation
    According to Table G, the solubility of KNO3 at 60°C is 110 g per 100 g of water. This means that at this temperature, 100 g of water can dissolve a maximum of 110 g of KNO3 before the solution becomes saturated.

    Rate this question:

Quiz Review Timeline (Updated): Jan 20, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 20, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 30, 2009
    Quiz Created by
    Etucci
Back to Top Back to top
Advertisement