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DE_CH_5.3_Acids, Bases, and Salts

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Last updated about 3 years ago
41 Nsɛmmisa
Background Knowledge
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Acid-Base Theories (1)
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Precipitation Reactions (2)
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Acid-Base Strength (3-4)
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Acid-Base Reactions and Buffers (5-6)
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pH and pOH (7-8)
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

What do I already know about acids, bases, and salts?

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2.

What are ways in which you use acids, bases and salts in your everyday life?

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3.
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4.
Mmuae Afoforo a Wobɛpaw:
100
-3
12
1
7
-1
-2
10
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5.

Match each acid formula with its name.

Draggable itemarrow_right_altCorresponding Item

HClO4

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hydrocloric acid

HClO2

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hypoclorous acid

HCl

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chlorous acid

HClO

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cloric acid

HClO3

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pechloric acid

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6.
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7.

What will hydrochloric acid form when added to water?

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8.

What will sodium hydroxide form when added to water?

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9.
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10.

For the Brønsted-Lowry definition of acids and bases, a donated proton is

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11.
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12.

The common acids are all formed from a negative ion and a negative hydroxide ion.

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13.

What is a precipitation reaction?

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14.
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15.

These are guidelines that help you to identify insoluble compounds known as

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16.
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17.
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18.

According to the Arrhenius definition of acids and bases, the strength of an acid or base is defined as

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19.

All acids dissociate, but only some will ionize.

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20.
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21.

Categorize the following statements.

  • Forms a conjugate base

  • Kb

  • Forms a conjugate acid

  • HA = H+ + A-

  • Ka

  • B = OH- + BH+

  • Acid Reactions

  • Base Reactions

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22.

Which of these compounds is an amphoteric substance?

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23.

When a water molecule accepts a proton, hydronium is formed. Where does this extra proton come from?

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24.

Match the correct reaction type to the corresponding chemical equation.

Draggable itemarrow_right_altCorresponding Item

strong acid-weak base

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HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (aq)

strong acid-strong base

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HC2H3O2 (aq) + KOH (aq) → H2O (aq) + KC2H3O (aq)

weak acid-weak base

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HCl (aq) + NH3 (aq) ⇄ NH4Cl (aq)

weak acid-strong base

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NH3 (aq) +H2O (aq) ⇄ NH4+ (aq) + OH- (aq)

Questions 25 & 26
01:37
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25.

Which of these is not a method of salt preparation shown in the video?

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27.

Consider the following left-hand side of a chemical reaction:

HClO4 + KOH →

Select the correct right hand side from the list below.

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28.
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29.

How can chemists maintain a constant concentration of the pH of a solution?

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30.
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31.

During neutralization, an acid and a base will react to form what?

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32.

What is the equation for Neutralization?

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33.

What volume, in milliliters, of a 0.997 M KOH solution is needed to neutralize 30.0 mL of 0.400 M HCL?

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34.

A student pipets 10.0 mL 0.0500 M H3PO4 into a flask. What volume of 0.0200 M Mg(OH)2 could be added that will completely neutralize the acid?

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35.

An unknown volume of 0.200 M acetic acid (HC2H3O2) was completely neutralized by 22.0 mL 0.140 M ammonia (NH3) in water. What was the original volume of the acetic acid before neutralization?

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36.
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37.
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38.

We can use the negative logarithm (pH = -log[molarity]) in order to find the pH of weak acids/bases.

Questions 39 & 40
01:07
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39.

The method used to determine the unknown concentration of an acid or base by analyzing neutralization during the reaction is known as

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41.

Organize the following substances in decreasing order from highest pH to lowest pH.

  1. 5 g of distilled water

  2. Bleach with a pH of 12.6

  3. 1mM of KOH

  4. 4 kg of HCl with a molarity of 1mM

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26.

What is the name of the compound that is insoluble in the reaction shown in the video.

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40.

What is an indicator used for in a titration reaction?