Carbohydrates
Unknown Examined
Description of Test Results
Test
Observations
Molisch
purple interface
lodine/KI
yellow
X
Benedict's
blue
Interpretation
positive test. Unknown
is a call chydrate
negative test. unkan
is not a starch
negative test. unknown
is a no-reducing sugar
Negative test. unkinan
is a non-reducing norauda ride
negative test. Unknown
is not a ketose
Negative test, unknown
is not a Pentos
Barfoed's
blue
Seliwanoff's
clear product
Bial's
yellowish green
Identity of Unknown:
.
The possible unknown sugars are arabinose, fructose, galactose, glucose, lactose
maltose, mannitol, ribulose, starch, sucrose, and xylose. For many of the
unknowns more than one of the sugars is possible. Be sure to list all sugars that
would match the experimental data for each unknown. Provide a detailed
explanation for the identity of the unknowns. Include data that excludes potential
sugars as unknowns. Include data that confirms the identity of the unknowns.
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The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?
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