Acids/Bases

Which has a pH below 7?

• Acid
• Base

Which has a pH above 7?

• Acid
• Base

When a hydrogen ion is released what does the solution become?

• Basic
• Acidic
• Amphoteric
• Proton

When a hydroxide ion is released what does the solution become?

• Basic
• Acidic
• Amphoteric
• Proton

Forms hydronium ions in water.

• Acids
• Bases
• All

BASE + ACID ----> SALT +?

• water
• oxygen
• hydrogen ion
• hydroxide ion

Which is most acidic?

• milk
• Lemon Juice
• bleach

Tags

NGSS.MS-PS1-2

Which of the following solutions is most basic?
(HINT...be careful! Acidity and basicity are determined by the point measured on the pH scale. And don't forget [H⁺] = 10^-pH)

• [H⁺] = 1 x 10^-11
• [OH^-] = 1 x 10^-4
• [H⁺] = 1 x 10^-2
• [OH^-]= 1 x 10^-13

The pH of a solution is 4.00.  What is the hydroxide ion concentration?
(HINT...pH + pOH = 14 and
[OH^-] = 10^-pOH)

• [OH^-] = 1 x 10^-4
• [OH^-] = 1 x 10^-6
• [OH^-] = 1 x 10^-10
• [OH^-] = 1 x 10^-14

What is the pH of a solution with a hydrogen ion concentration of 1.0 x 10^-8 M?
(HINT...use the calculator...
pH = -log [H⁺] )

• -8
• 6
• 8
• 14