Which of the following would have ion-dipole intermolecular forces? There may be more than 1 correct answer Select one or more: O NaCl in water O MgCl2 in water Omethane water O Acetonitrile (CH3CN)

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
Question
### Understanding Ion-Dipole Intermolecular Forces

**Question:**

Which of the following would have ion-dipole intermolecular forces?  
There may be more than one correct answer.

**Options:**

- [ ] NaCl in water
- [ ] MgCl₂ in water
- [ ] methane
- [ ] water
- [ ] Acetonitrile (CH₃CN)

### Explanation:

Ion-dipole intermolecular forces occur between an ion and a polar molecule. These forces are significant in solutions where ionic compounds dissolve in polar solvents, such as water.

1. **NaCl in water:** When sodium chloride (NaCl) dissolves in water, it dissociates into Na⁺ and Cl⁻ ions. Water is a polar molecule, and it will orient its partially negative oxygen atoms towards the Na⁺ ions and its partially positive hydrogen atoms towards the Cl⁻ ions, thus forming ion-dipole interactions.

2. **MgCl₂ in water:** Magnesium chloride (MgCl₂) similarly dissociates into Mg²⁺ and 2 Cl⁻ ions when dissolved in water, forming strong ion-dipole interactions with the polar water molecules.

3. **Methane:** Methane (CH₄) is a non-polar molecule. It does not have a dipole moment; thus, it cannot participate in ion-dipole interactions.

4. **Water:** Pure water itself consists of hydrogen bonds and does not involve ion-dipole interactions unless ions are present.

5. **Acetonitrile (CH₃CN):** Acetonitrile is a polar molecule, but there are no ions mentioned in this scenario; thus, it does not form ion-dipole interactions on its own.

### Conclusion:

Based on the above explanations, the options that would have ion-dipole intermolecular forces are:

- NaCl in water
- MgCl₂ in water
Transcribed Image Text:### Understanding Ion-Dipole Intermolecular Forces **Question:** Which of the following would have ion-dipole intermolecular forces? There may be more than one correct answer. **Options:** - [ ] NaCl in water - [ ] MgCl₂ in water - [ ] methane - [ ] water - [ ] Acetonitrile (CH₃CN) ### Explanation: Ion-dipole intermolecular forces occur between an ion and a polar molecule. These forces are significant in solutions where ionic compounds dissolve in polar solvents, such as water. 1. **NaCl in water:** When sodium chloride (NaCl) dissolves in water, it dissociates into Na⁺ and Cl⁻ ions. Water is a polar molecule, and it will orient its partially negative oxygen atoms towards the Na⁺ ions and its partially positive hydrogen atoms towards the Cl⁻ ions, thus forming ion-dipole interactions. 2. **MgCl₂ in water:** Magnesium chloride (MgCl₂) similarly dissociates into Mg²⁺ and 2 Cl⁻ ions when dissolved in water, forming strong ion-dipole interactions with the polar water molecules. 3. **Methane:** Methane (CH₄) is a non-polar molecule. It does not have a dipole moment; thus, it cannot participate in ion-dipole interactions. 4. **Water:** Pure water itself consists of hydrogen bonds and does not involve ion-dipole interactions unless ions are present. 5. **Acetonitrile (CH₃CN):** Acetonitrile is a polar molecule, but there are no ions mentioned in this scenario; thus, it does not form ion-dipole interactions on its own. ### Conclusion: Based on the above explanations, the options that would have ion-dipole intermolecular forces are: - NaCl in water - MgCl₂ in water
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Properties of Liquids
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY