Chemistry Unit 11 Quiz

Does an acid or base start with H?

Acid

Does an acid or base create hydrogen ions when dissolved in water?

Acid

Does an acid or base conduct electricity when dissolved in water?

Both

Does an acid or base taste sour?

Acid

Does an acid or base have a pH less than 7?

Acid

Are these thing examples of acids or bases? -Lemon Juice, Stomach acid, vinegar-

Acid

What is monoprotic?

A type of acid that contains 1 H

What is diprotic?

A type of acid that contains 2 H

What is triprotic?

A type of acid that contains 3 H

What is polyprotic?

A type of acid that contains 2 or more H, it includes all diprotic and triprotic acids

Does an acid or base create hydroxide ions when dissolved in water?

Base

Does an acid or base taste bitter?

Base

Does an acid or base have slippery texture?

Base

Does an acid or base have a pH greater than 7?

Base

Are these thing examples of acids or bases? -Bleach, Baking Soda, Drain cleaner, ammonia-

Base

What is a pH scale?

A logarithmic, numeric scale with a range of 0-14 that is used to specify the acidity or basicity of an aqueous solution.

What pH do neutral substances have?

7

Since the pH scale is logarithmic, a pH value of 5 is _ times more than a pH value of 6. Fill in the blank

10

What is an Acid-Base indicator?

A solution that changes the color in the presence of an acid or base.

What is a Litmus Acid-Base indicator?

A paper strip that identifies the solution as an acid or base.

When using Litmus paper, what color will it turn for an acid?

Red

When using Litmus paper, what color will it turn for a base?

Blue

In the Bronsted-Lowry theory, what are the bases and acids?

Acids are H donors

Bases are H acceptors

What is a conjugate acid?

Product that has gained H in a reaction

What is a conjugate base?

Product that has lost H in a reaction

What does Amphoteric mean?

A substance that can act as both an acid and a base.

In the Lewis Theory, what are the acids and bases?

Acid is an electron pair acceptor

Base is an electron pair donor

What is Titration?

An experiment technique used to determine the concentration of a solution by reacting a known volume of the solution with a solution of a known concentration

What is Phenolphthalein Acid-Base indicator?

It is a solution that determines if the reaction is an acid or a base

What happens if the Phenolphthalein solution is colorless?

it is an acid

What happens if the Phenolphthalein solution is pink?

It is a base

What is a Universal Acid-Base indicator?

It changes color over the entire pH range. It can be used as a solution or a paper strip

What is Buffer?

It is a substance that resists change in pH when limited amounts of acid or base is added. It can be added purposefully to help maintain pH levels or naturally.

What do strong acids and bases do in water?

They completely dissociate

What do weak acids and bases do in water?

The partially dissociate

Is HCl a strong acid?

Yes

Is HC a strong acid?

No

Is HNO3 a strong acid?

Yes

Is HSO a strong acid?

No

Is H2SO4 a strong acid?

Yes

Is HI a strong acid?

Yes

Is HBr a strong acid?

Yes

Is HClO4 a strong acid?

Yes

Is HGe a strong acid?

No

Is H3Al a strong acid?

No

Is Ca(OH)2 a strong base?

Yes

Strong bases include all metals from group 2

True

Is Mg(OH)2 a strong base?

Yes

pH is only related to concentration

True

In Arrhenius’ theory, what are the acids and bases?

Acids produce H+

Bases produce OH-

What does the Arrhenius theory produce?

Water and salt

Whatever the significant figures are is how many decimals places your answer should have

True

If the pH is 1.03, is it acidic or basic?

Acidic

If the pH is 10.82, is it acidic or basic?

Basic