Acids and Bases

Acids

100

They donate ______ 

H+

200

Litmus paper turns _____ when subjected to an acid

Red

300

Which is an acid?

1. NaOH

2. NH₃

3. HNO₃

4. CaCl₂

HNO₃

400

The reaction between an acid and a base results in the formation of water and this.

What is a SALT

500

Which substance is an acid? Why?

H₂O + NH₃ > OH^- + NH₄⁺

H₂O, because it donated an H⁺ ions

Bases

100

They accept _____ 

H+

200

Litmus paper turns _____ when subjected to a base

Blue

300

Which is a base?

1. NaOH

2. HCl

3. CaCl₂

4. H₂SO₄

NaOH

400

Which concentration of KOH would have the greatest amount of OH^- ions? Why?

1.0M

0.1M

0.001M

0.0001M

1.0M, because it contains the MOST amount of KOH and OH- ions

500

Which substance is a base? Why?

H₂O + HBr > H₃O⁺ + Br^-

H₂0, because it accepted an H⁺ ions

Mis.

100

Tastes sour

acids

200

Can form the hydronium ion H₃O+ in solution

Acid

300

A substance that acts as an acid and a base

Amphoteric 

400

When phenolphthalein is added during a titration, what color does the solution turn when neutralization has occurred?

Light pink

500

Two parts:

1. Why do burets start at 0mL?

2. How would we determine the amount of acid/base used in a titration via a buret?

1. 0mL indicates that 0mL of acid/base was poured out of the buret

2. Subtract the final volume on the buret from the initial volume of the buret

Titrations

100

What is the purpose of performing a titration?

To calculate the concentration of an acid/base

200

Why do we need an indicator when performing titrations?

To determine when neutralization has occurred 

300

When neutralization occurs, the moles of acid & base are ______ and the pH is _____ 

equal & 7

400

10.0mL of 2.0M NaOH was used to neutralize 15.0mL of HCl. What is the concentration of HCl?

1.33M

500

You are titrating a base with a known concentration of acid. Would adding too much acid to the base affect anything? why or why not?

Adding too much acid beyond neutralization will result in a lower calculated concentration of base. It will not provide the correct concentration of the base.

pH/Concentration

100

The pH range goes from ___ to ____

What is 0-14

200

Coffee has a pH of 5. Given this information, coffee would be considered one of these.

What is an ACID

300

What makes a strong acid strong and a weak acid weak?

Strong acids have more H3O+/H+ ions

400

Citric acid is found in many fruits, yet fruits are safe to eat. Which is most likely to be the pH of citric acid: 1, 5, 7, or 10

What is 5

500

Why/how do antacids help alleviate heart burn?

They help neutralize our stomach acid and bring the pH up to make it less acidic