Fusion is a type of chemical reaction true or false
2 answers:
Answer:
True.
Explanation:
Hello,
Fusion, more specifically, nuclear fusion is a nuclear process, in which energy is produced in the form of heat by smashing together light atoms. It is the process by which the sun and other stars generate light and heat as well.
On the attached document, you will find an example wherein deuterium and tritium combine to yield energy, helium and a neutron, validating that the initial composition is quite different than the final one, thus, fusion is actually a type of nuclear chemical reaction.
Best regards.
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<u>Answer:</u> The percentage yield of aspirin is 38.02 %.
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
.....(1)
- <u>For salicylic acid:</u>
Given mass of salicylic acid = 10.09 g
Molar mass of salicylic acid = 138.12 g/mol
Putting values in equation 1, we get:
The chemical equation for the formation of aspirin follows:
As, acetic anhydride is present in excess. So, it is considered as an excess reagent.
Thus, salicylic acid is a limiting reagent because it limits the formation of products.
By Stoichiometry of the reaction:
1 mole of salicylic acid produces 1 mole of aspirin.
So, 0.0730 moles of salicylic acid will produce = of aspirin
Now, calculating the mass of aspirin from equation 1, we get:
Molar mass of aspirin = 180.16 g/mol
Moles of aspirin = 0.073 moles
Putting values in equation 1, we get:
To calculate the percentage yield of aspirin, we use the equation:
Experimental yield of aspirin = 5.0 g
Theoretical yield of aspirin = 13.15 g
Putting values in above equation, we get:
Hence, the percent yield of aspirin is 38.01 %.