Acids and Bases

Stronger acids are those that -

• Hold onto their protons more strongly

• Lose their protons more easily

• More completely inhibit polarity in water

• Exhibit hydrogen bonding

Which of the following is considered a strong acid?

• NH₃

• KOH

• HCl

• NaOH

What is the name of H₃PO₄?

What is the pH of 0.0001M NaOH?

For two acids of equal concentration, the stronger acid has -

• A higher concentration of hydroxide ions

• A higher pH

• A higher concentration of hydronium ions

• A stronger bond

Potassium hydroxide, also known as lye, dissociates into metal and hydroxide ions in water. The resulting solution is caustic and used for industrial applications. What describes the dissociated solution?

• Strong base

• Weak acid

• Weak base

• Strong acid

“An acid is a substance that forms hydrogen ions when dissolved in water.” This is an example of Arrhenius or Bronsted-Lowry?

• Arrhenius

• Bronsted-Lowry

Which best describes how acids are described according to the Bronsted-Lowry definition?

• Any substance that dissociates to produce H in aq solution.

• Any substance that donates a proton to any other substance.

• Any substance that dissociates to produce OH in aq solution.

• Any substance that receives a proton.

The pH of a basic solution is-

• Exactly 7

• Less than 7

• Greater than 7

• Between 3 and 6

What does pH measure?

• Concentration of hydrogen ions

• Concentration of hydroxide ions