55 Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the reaction: C O 2 ( g ) + 2 N H 3 ( g ) → C O ( N H 2 ) 2 ( s ) + H 2 O ( g ) A scientist has 75 g of dry ice to provide the carbon dioxide. If 4.50 L of ammonia at 15 ∘ C and a pressure of 1.4 atm is added, which reactant is limiting? What mass of urea will form?
55 Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the reaction: C O 2 ( g ) + 2 N H 3 ( g ) → C O ( N H 2 ) 2 ( s ) + H 2 O ( g ) A scientist has 75 g of dry ice to provide the carbon dioxide. If 4.50 L of ammonia at 15 ∘ C and a pressure of 1.4 atm is added, which reactant is limiting? What mass of urea will form?
55 Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the reaction:
C
O
2
(
g
)
+
2
N
H
3
(
g
)
→
C
O
(
N
H
2
)
2
(
s
)
+
H
2
O
(
g
)
A scientist has 75 g of dry ice to provide the carbon dioxide. If 4.50 L of ammonia at
15
∘
C and a pressure of 1.4 atm is added, which reactant is limiting? What mass of urea will form?
Draw the Fischer projection for a D-aldo-pentose. (aldehyde pentose). How many total
stereoisomers are there? Name the sugar you drew.
Draw the Fischer projection for a L-keto-hexose. (ketone pentose). How many total
stereoisomers are there? Draw the enantiomer.
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?
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