Acids, Bases, and pH

Acids

100

Acids have a pH between ___ and ____

1 and 7

200

Acids make litmus paper turn ________.

Red

300

What is the name is this acid: HCl

Hydrochloric acid

400

A substance that ionizes almost completely in aqueous solutions and produces H₃O⁺ ions

Strong Acid

500

Give the chemical formula for hydrosulfuric acid

H₂S

Bases

100

Bases have a pOH between

1 and 7

200

Bases turn litmus paper what color?

Blue

300

If a substance doesn't ionize completely, but does produce some OH^- ions, you would classify this as a _____________.

Weak Base

400

What is the pOH if the [OH^-] is 1.0 x 10^-3?

pOH = 3

500

List two bases that are used in every day life.

Soap

Antacids

Deodorant

Baking Soda

Acid/Base/Both/Neither

100

Can be corrosive

ACID

200

Can form hydronium ions in solution

Acid

300

Primary ingredient in antacids

Bases

400

Feel slimy/soapy to the touch

Bases

500

Reacts with indicators to produce a color change

Both acids and bases

Acid-Base Reactions

100

What are the products formed?

HCl + NaOH --> _________ + ________

NaCl (salt) + H₂O (water)

200

_________ is given off when an acid reacts with a metal.

H_2(g) (Hydrogen Gas)

300

Property of acids that "eats away" at metals

Corrosion

400

If a reaction gives off OH^- ions, this type of reactant had to be present.

Base

500

If you combine equal amounts of Solution A (pH = 14) and Solution B (pH = 1), what do you expect the pH of your final solution to be?

pH = approx. 7

pH/pOH

100

What is the range of pH values?

1-14

200

Coffe has pH= 5. Coffee is a(n) __________.

Coffe is an acid.

300

The pH of a 1 x 10^-6 solution of HCl is _______.

pH = 6

400

What is the difference between pH and pOH?

pH measures concentration of H+

pOH measures concentration of OH-

500

Citric acid is found in many fruits. What is the most likely value for the pH of citric acid?

A) 1

B) 5

C) 7

D) 10

B) 5