pH Review

What is pH ?

• Concentration of Hydrogen ions

• Concentration of ions

What is the ideal pH level for your blood?

• 7.35

• 4.50

• 7

• 0

Tags

NGSS.HS-LS1-3

Is it better for your body to be alkaline or acidic?

• Alkaline

• Acidic

An acidic solution has a

• higher concentration of hydrogen ions than hydroxide ions

• higher concentration of hydroxide ions than hydrogen ions

• equal concentration of hydrogen ions and hydroxide ions

According to Arrhenius theory, an acid causes which

aqueous ion concentration to increase?

• hydride ion

• hydronium ion

• hydrogen

  ion

• hydroxide ion

A Bronsted-Lowry base in water:

• donates hydroxide ions in solution

• accepts

  hydrogen ions in solution

• donates hydrogen ions in solution

• accepts hydroxide ions in solution

A binary acid

• has

  two different elements (in addition to the H+)

• has two protons

• accepts two protons

• acts as an acid and a base

Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this solution?

• weakly acidic

• strongly acidic

• weakly basic

• strongly basic

Compounds that reduce the concentration of hydrogen ions in a solution; pH level more than 7 (8-14); [H+] < [OH-]

• Acids

• Water

• Bases

• Buffer

Buffer is defined as

• ability to resist pH change
• ability to prevent pH from decreasing
• ability to resist a pH increase
• ability to resist pH change when small amount of acid added