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Oleic acid belongs to class of alkene and in alkenes, addition of across
that is carbon carbon double bond results in the formation of alkane as a product in the presence of specific catalyst such as nickel, palladium and platinum. The reaction is said to be hydrogenation reaction.
Oleic acid () consist of 17 carbon atoms attached to 33 hydrogen atoms with one double bond between two carbon atoms and one carboxylic group i.e.(
). When oleic acid is hydrogenated or reacts with hydrogen in the presence of catalyst, then the carbon carbon double breaks by the addition
and alkane product i.e. stearic acid (
) is formed.
The chemical reaction is shown in the image.
Answer: a) 1.97 grams of carbon disulfide will remain after 37.0 days.
b) 2.85 grams of carbon monosulfide will be formed after 37.0 days.
Explanation: The decomposition of carbon disulfide is given as:
at t=0 4.83g 0 0
at t=37 days 4.83 - x x x
here,
x = amount of utilised in the reaction
This reaction follows first order kinetics so the rate law equation is:
where, k = rate constant
t = time
= Initial mass of reactant
A = Final mass of reactant
a) For this, the value of
t = 370 days = 3196800 sec
= 4.83
A = 4.83-x
Putting values in the above equation, we get
x = 2.85g
Amount of remained after 37 days = 4.83 - x
= 1.97g
b) Amount of carbon monosulfide formed will be equal to "x" only which we have calculated in the previous part.
Amount of carbon monosulfide formed = 2.85g