For the following chemical reactions , determine the precipitate produced when the two reactants listed below are mixed together. Indicate “none” if no precipitate will form. msp; Formula of Precipitate Na 2 SO 4 ( a q ) + Pb ( NO 3 ) 2 ( a q ) → _ ( s ) AgNO 3 ( a q ) + KCl ( a q ) → _ ( s ) NCl ( a q ) + NaNO 3 ( a q ) → _ ( s )
For the following chemical reactions , determine the precipitate produced when the two reactants listed below are mixed together. Indicate “none” if no precipitate will form. msp; Formula of Precipitate Na 2 SO 4 ( a q ) + Pb ( NO 3 ) 2 ( a q ) → _ ( s ) AgNO 3 ( a q ) + KCl ( a q ) → _ ( s ) NCl ( a q ) + NaNO 3 ( a q ) → _ ( s )
Solution Summary: The author explains that precipitation reaction occurs between cation and anions in aqueous solution combines to form an ionic solid mass called precipitate.
For the following chemical reactions, determine the precipitate produced when the two reactants listed below are mixed together. Indicate “none” if no precipitate will form.
msp;
Formula of Precipitate
Na
2
SO
4
(
a
q
)
+
Pb
(
NO
3
)
2
(
a
q
)
→
_
(
s
)
AgNO
3
(
a
q
)
+
KCl
(
a
q
)
→
_
(
s
)
NCl
(
a
q
)
+
NaNO
3
(
a
q
)
→
_
(
s
)
Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.
Draw a structure using wedges and dashes for the following compound:
H-
Et
OH
HO-
H
H-
Me
OH
Which of the following molecules are NOT typical carbohydrates? For the molecules that are
carbohydrates, label them as an aldose or ketose.
HO
Он
ОН ОН
Он
ОН
но
ΤΗ
HO
ОН
HO
eve
Он он
ОН
ОН
ОН
If polyethylene has an average molecular weight of 25,000 g/mol, how many repeat units
are present?
Draw the a-anomer cyclized pyranose Haworth projection of the below hexose. Circle the
anomeric carbons. Number the carbons on the Fischer and Haworth projections. Assign R
and S for each chiral center.
HO
CHO
-H
HO
-H
H-
-OH
H
-OH
CH₂OH
Draw the ẞ-anomer cyclized furanose Haworth projection for the below hexose. Circle the
anomeric carbons. Number the carbons on the Fischer and Haworth projections.
HO
CHO
-H
H
-OH
HO
-H
H
-OH
CH₂OH
Chapter 7 Solutions
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