Question
1.What is polarity? a.Electrical charges present in a molecule that tell us how molecules will behave based on their electrons. b.Intermolecular forces between hydrogen bonds that creates surface tension. c.A type of molecule that contains a polar head and a nonpolar tail. d.A solvent that dissolves a solute. 2.How does electronegativity factor into polarity? a.Electronegativity is not needed for polarity. b.For a molecule to be polar it must have electronegativity. c.Electronegativity creates cohesive forces which makes a molecule polar. d.None of the above. 3.What factors need to be considered for polarity? a.Electronegativity b.Dipole Moment c.Cohesive forces d.Both A and B 4.For a solution to be consider saturated it must...a.Hold the maximum amount of solute dissolved in a solvent. b.Hold less than the maximum amount of solute dissolved in a solvent. c.Hold more than the maximum amount of solute dissolved in a solvent. d.All of the above. 5.An electrolyte solution is... a.A polar solution that conducts an electrical charge. b.A nonpolar solution that conducts an electrical charge.c.A polar solution that does not conduct an electrical charge. d.A nonpolar solution that does not conduct an electrical charge.6.When dissolving a solute into a solvent, the solubility can be increased by... a.Increasing the temperature b.Increasing the surface area c.Increasing agitation d.All of the above
7.A nonpolar liquid is mixed with a polar liquid, what will happen? a.The polar and non-polar liquid will create one combined liquid. b.The polar and non-polar liquid will separate into two layers.c.The solution will spontaneously combust. d.None of the above. 8.On a solubility curve, the space above the curve represents which value? a.Unsaturated b.Saturated c.Super saturated d.All of the above 9.A chemist dissolves 25 g of NaCl in 750 mL of water to make a solution. What is the molarity (M) of the NaCl solution? (Na=22 g/mol; Cl= 35 g/mol) a.0.428 M b.0.571 M c.22.9 M d.58.4 M10.Predict the solubility of LiCl (Lithium Chloride) in water. a.Soluble b.Insoluble 11.A scientist has 250.0 mL of a 3.00 M H₂SO₄ (sulfuric acid) solution. They need to dilute it to 1.00 M. What will be the final volume after dilution?a.750 ml b.1 L c.3.00 L d.250 mL12.A student is given a beaker containing a solution of sugar and water. Which of the following best describes why this solution does not conduct electricity> a.Sugar molecules do not ionize in water. b.Sugar has a high polarity, preventing conductivity. c.Sugar reacts with water to form a non-polar solution. d.Sugar completely dissociates into ions, preventing current flow. 13.Which of the following changes would decrease the solubility of a solid in a liquid? a.Increasing the temperature of the liquid b.Increasing the pressure of the liquid c.Cooling the liquid to a lower temperature d.Stirring the solution at a constant temperature
7.A nonpolar liquid is mixed with a polar liquid, what will happen? a.The polar and non-polar liquid will create one combined liquid. b.The polar and non-polar liquid will separate into two layers.c.The solution will spontaneously combust. d.None of the above. 8.On a solubility curve, the space above the curve represents which value? a.Unsaturated b.Saturated c.Super saturated d.All of the above 9.A chemist dissolves 25 g of NaCl in 750 mL of water to make a solution. What is the molarity (M) of the NaCl solution? (Na=22 g/mol; Cl= 35 g/mol) a.0.428 M b.0.571 M c.22.9 M d.58.4 M10.Predict the solubility of LiCl (Lithium Chloride) in water. a.Soluble b.Insoluble 11.A scientist has 250.0 mL of a 3.00 M H₂SO₄ (sulfuric acid) solution. They need to dilute it to 1.00 M. What will be the final volume after dilution?a.750 ml b.1 L c.3.00 L d.250 mL12.A student is given a beaker containing a solution of sugar and water. Which of the following best describes why this solution does not conduct electricity> a.Sugar molecules do not ionize in water. b.Sugar has a high polarity, preventing conductivity. c.Sugar reacts with water to form a non-polar solution. d.Sugar completely dissociates into ions, preventing current flow. 13.Which of the following changes would decrease the solubility of a solid in a liquid? a.Increasing the temperature of the liquid b.Increasing the pressure of the liquid c.Cooling the liquid to a lower temperature d.Stirring the solution at a constant temperature
Answers
GPT-4o mini
Here are the correct answers to your questions:
1. **What is polarity?**
**a.** Electrical charges present in a molecule that tell us how molecules will behave based on their electrons.
2. **How does electronegativity factor into polarity?**
**b.** For a molecule to be polar it must have electronegativity.
3. **What factors need to be considered for polarity?**
**d.** Both A and B (Electronegativity and Dipole Moment).
4. **For a solution to be considered saturated it must...**
**a.** Hold the maximum amount of solute dissolved in a solvent.
5. **An electrolyte solution is...**
**a.** A polar solution that conducts an electrical charge.
6. **When dissolving a solute into a solvent, the solubility can be increased by...**
**d.** All of the above (Increasing the temperature, Increasing the surface area, Increasing agitation).
7. **A nonpolar liquid is mixed with a polar liquid, what will happen?**
**b.** The polar and non-polar liquid will separate into two layers.
8. **On a solubility curve, the space above the curve represents which value?**
**c.** Super saturated.
9. **A chemist dissolves 25 g of NaCl in 750 mL of water to make a solution. What is the molarity (M) of the NaCl solution? (Na=22 g/mol; Cl= 35 g/mol)**
**b.** 0.571 M
(Molarity = moles of solute / liters of solution; 25 g NaCl = 0.4286 moles, so 0.4286 moles / 0.750 L = 0.571 M).
10. **Predict the solubility of LiCl (Lithium Chloride) in water.**
**a.** Soluble.
11. **A scientist has 250.0 mL of a 3.00 M H₂SO₄ (sulfuric acid) solution. They need to dilute it to 1.00 M. What will be the final volume after dilution?**
**c.** 750 mL
(Using dilution formula \( C_1V_1 = C_2V_2 \): \( 3.00 M \times 250.0 mL = 1.00 M \times V_2 \), \( V_2 = 750 mL \)).
12. **A student is given a beaker containing a solution of sugar and water. Which of the following best describes why this solution does not conduct electricity?**
**a.** Sugar molecules do not ionize in water.
13. **Which of the following changes would decrease the solubility of a solid in a liquid?**
**c.** Cooling the liquid to a lower temperature.
Feel free to ask if you have more questions!
1. **What is polarity?**
**a.** Electrical charges present in a molecule that tell us how molecules will behave based on their electrons.
2. **How does electronegativity factor into polarity?**
**b.** For a molecule to be polar it must have electronegativity.
3. **What factors need to be considered for polarity?**
**d.** Both A and B (Electronegativity and Dipole Moment).
4. **For a solution to be considered saturated it must...**
**a.** Hold the maximum amount of solute dissolved in a solvent.
5. **An electrolyte solution is...**
**a.** A polar solution that conducts an electrical charge.
6. **When dissolving a solute into a solvent, the solubility can be increased by...**
**d.** All of the above (Increasing the temperature, Increasing the surface area, Increasing agitation).
7. **A nonpolar liquid is mixed with a polar liquid, what will happen?**
**b.** The polar and non-polar liquid will separate into two layers.
8. **On a solubility curve, the space above the curve represents which value?**
**c.** Super saturated.
9. **A chemist dissolves 25 g of NaCl in 750 mL of water to make a solution. What is the molarity (M) of the NaCl solution? (Na=22 g/mol; Cl= 35 g/mol)**
**b.** 0.571 M
(Molarity = moles of solute / liters of solution; 25 g NaCl = 0.4286 moles, so 0.4286 moles / 0.750 L = 0.571 M).
10. **Predict the solubility of LiCl (Lithium Chloride) in water.**
**a.** Soluble.
11. **A scientist has 250.0 mL of a 3.00 M H₂SO₄ (sulfuric acid) solution. They need to dilute it to 1.00 M. What will be the final volume after dilution?**
**c.** 750 mL
(Using dilution formula \( C_1V_1 = C_2V_2 \): \( 3.00 M \times 250.0 mL = 1.00 M \times V_2 \), \( V_2 = 750 mL \)).
12. **A student is given a beaker containing a solution of sugar and water. Which of the following best describes why this solution does not conduct electricity?**
**a.** Sugar molecules do not ionize in water.
13. **Which of the following changes would decrease the solubility of a solid in a liquid?**
**c.** Cooling the liquid to a lower temperature.
Feel free to ask if you have more questions!