Standard Grade Chemistry
Problem Solving
Focusing on Making Predictions
1.
Look at the structures below.
(a)
(b)
(c)
2.
Using a similar type of diagram, predict the structural formula for an alkanol with 4
carbon atoms.
Using a similar type of diagram predict the structural formula for an ether with only
2 carbon atoms.
The molecular formula for the alkane is CH4.
Predict the molecular formula for the amine.
W, X, Y and Z represent three unknown elements in the Periodic Table.
W has 4 electrons in its outer energy level.
X has 5 electrons in its outer energy level.
Y has 6 electrons in its outer energy level.
Z has 7 electrons in its outer energy level.
The structural formula for the compound formed between X and Z is
Z------ X ----- Z
|
Z
(a)
Predict the structural formula for the compound formed between W and Z.
(b)
Predict the structural formula for the compound formed between Y and Z.
3. The table below lists the pH values of some organic acids with the same concentration.
(a)
Predict the structural formula of an acid with a pH value of less than 0.6.
(b)
Predict the pH value for the organic acid the following structural formula.
H
(c)
H
|
C
|
H
Cl
|
C
|
Cl
H
|
C
|
H
O
C
OH
Predict the pH of an organic acid with 5 carbon atoms with hydrogen atoms attached
but no chlorine atoms.