Podcast
Questions and Answers
What is the pH range of a strongly acidic solution?
What is the pH range of a strongly acidic solution?
What is the general equation for a neutralization reaction?
What is the general equation for a neutralization reaction?
Which of the following is a weak alkali?
Which of the following is a weak alkali?
What is the pH of a solution that is neutral?
What is the pH of a solution that is neutral?
Signup and view all the answers
What is the characteristic of neutralization reactions in terms of energy?
What is the characteristic of neutralization reactions in terms of energy?
Signup and view all the answers
Study Notes
pH Scale
- A scale used to measure the acidity or basicity of a solution
- pH ranges from 0-14, with:
- 0-1: Strongly acidic
- 2-3: Acidic
- 4-5: Weakly acidic
- 6-7: Neutral
- 8-9: Weakly basic
- 10-12: Basic
- 13-14: Strongly basic
- pH is calculated using the formula: pH = -log[H+]
Types of Alkalis
- Strong Alkalis:
- Sodium hydroxide (NaOH)
- Calcium hydroxide (Ca(OH)2)
- Potassium hydroxide (KOH)
- Weak Alkalis:
- Ammonia (NH3)
- Organic bases (e.g. amines)
Neutralization Reactions
- A reaction between an acid and a base to form a salt and water
- General equation: Acid + Base → Salt + Water
- Examples:
- HCl (acid) + NaOH (base) → NaCl (salt) + H2O (water)
- H2SO4 (acid) + Ca(OH)2 (base) → CaSO4 (salt) + H2O (water)
- Neutralization reactions are exothermic, releasing heat energy
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Learn about the pH scale, types of acids and bases, and neutralization reactions. Understand how to calculate pH and identify strong and weak acids and bases.
