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Answer:
Mass is lost due to the conversion of mass to energy
Explanation:
The question is not complete, the complete question is given as:
⇒
total mass equals 236.053 u total mass equals 235.868 u
Which statement explains the energy term in this reaction? (1) Mass is gained due to the conversion of mass to energy. (2) Mass is gained due to the conversion of energy to mass. (3) Mass is lost due to the conversion of mass to energy. (4) Mass is lost due to the conversion of energy to mass.
Answer: From Einstein’s equation E = mc², when a radioisotope element undergoes fission or fusion in a nuclear reaction, it loses a tiny amount of mass.This mass lost is converted to energy.
The law of conservation of energy holds for this type of reaction (i.e the sum of mass and energy is remains the same in a nuclear reaction). Mass changes to energy, but the total amount of mass and energy combined remains the same before and after a nuclear reaction.
From the reaction above, the total decrease in mass = 236.053 - 235.868 = 0.185 u
Answer:
Theoretical yield = 13.7 g
% yield =76 %
Explanation:
For
Mass of = 4.07 g
Molar mass of = 101.96 g/mol
The formula for the calculation of moles is shown below:
Thus,
According to the reaction:
1 mole of on reaction produces 1 mole of
So,
0.0399 mole of on reaction produces 0.0399 mole of
Moles of obtained = 0.0399 mole
Molar mass of = 342.2 g/mol
The formula for the calculation of moles is shown below:
Thus,
<u>Theoretical yield = 13.7 g</u>
The expression for the calculation of the percentage yield for a chemical reaction is shown below as:-
Given , Values from the question:-
Theoretical yield = 13.7 g
Experimental yield = 10.4 g
Applying the values in the above expression as:-
<u>% yield =76 %</u>