Chemistry
14th Edition
ISBN: 9781264243709
Author: Chang, Raymond
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 2, Problem 2.103QP
(a)
Interpretation Introduction
Interpretation:
The formula of dry ice has to be given.
Concept Introduction:
Chemical formula is the representation of information about the chemical proportions of atoms that constitute a particular chemical compound or molecule using
(b)
Interpretation Introduction
Interpretation:
The formula of table salt has to be given.
Concept Introduction:
Refer part “(a)”.
(c)
Interpretation Introduction
Interpretation:
The formula of laughing gas has to be given.
Concept Introduction:
Refer part “(a)”.
(d)
Interpretation Introduction
Interpretation:
The formula of marble has to be given.
Concept Introduction:
Refer part “(a)”.
(e)
Interpretation Introduction
Interpretation:
The formula of quicklime has to be given.
Concept Introduction:
Refer part “(a)”.
(f)
Interpretation Introduction
Interpretation:
The formula of slaked lime has to be given.
Concept Introduction:
Refer part “(a)”.
(g)
Interpretation Introduction
Interpretation:
The formula of baking soda has to be given.
Concept Introduction:
Refer part “(a)”.
(g)
Interpretation Introduction
Interpretation:
The formula of baking soda has to be given.
Concept Introduction:
Refer part “(a)”.
(h)
Interpretation Introduction
Interpretation:
The formula of washing soda has to be given.
Concept Introduction:
Refer part “(a)”.
(i)
Interpretation Introduction
Interpretation:
The formula of gypsum has to be given.
Concept Introduction:
Refer part “(a)”.
(j)
Interpretation Introduction
Interpretation:
The formula of milk of magnesia has to be given.
Concept Introduction:
Refer part “(a)”.
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3. Arrange the different acids in Exercise B # 2 from the strongest (1) to the weakest acid
(10).
1.
2.
(strongest)
3.
4.
5.
6.
7.
8.
9.
10
10.
(weakest)
Name
Section
Score
Date
EXERCISE B
pH, pOH, pка, AND PKD CALCULATIONS
1. Complete the following table.
Solution
[H+]
[OH-]
PH
РОН
Nature of Solution
A
2 x 10-8 M
B
1 x 10-7 M
C
D
12.3
6.8
2. The following table contains the names, formulas, ka or pka for some common acids. Fill
in the blanks in the table. (17 Points)
Acid Name
Formula
Dissociation reaction
Ka
pka
Phosphoric acid
H₂PO₁
H3PO4
H++ H₂PO
7.08 x 10-3
Dihydrogen
H₂PO
H₂PO
H+ HPO
6.31 x 10-6
phosphate
Hydrogen
HPO₁
12.4
phosphate
Carbonic acid
H2CO3
Hydrogen
HCO
6.35
10.3
carbonate or
bicarbonate
Acetic acid
CH,COOH
4.76
Lactic acid
CH₂CHOH-
COOH
1.38 x 10
Ammonium
NH
5.63 x 10-10
Phenol
CH₂OH
1 x 10-10
Protonated form
CH3NH3*
3.16 x 10-11
of methylamine
Indicate whether it is true that Co(III) complexes are very stable.
Chapter 2 Solutions
Chemistry
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