Which particle changes the mass of the isotope the most? which particle changes the mass of the isotope the most? electron captu
2 answers:
Answer: Option (d) is the correct answer.
Explanation:
Species which contain same number of protons but different number of neutrons are known as isotope.
For example, and
are isotopes.
More is the mass of particle colliding with the isotope more will be the change in mass of an isotope due to emission of a heavier particle.
As alpha () particle is heavier then a neutron, positron and gamma particles.
For example,
Therefore, we can conclude that alpha particle changes the mass of the isotope the most.
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We are given with the mass of Arsine (
The mass of arsine is 15g
there is a relation between moles, mass and molar mass of any compound which is
The molar mass of Arsine = atomic mass of As + 3X atomic mass of H
the molar mass of Arsine = 74.92 + 3X 1 = 77.92 g/mol
Let us calculate the moles as
Answer : The energy required to melt 58.3 g of solid n-butane is, 4.66 kJ
Explanation :
First we have to calculate the moles of n-butane.
Given:
Molar mass of n-butane = 58.12 g/mole
Mass of n-butane = 58.3 g
Now put all the given values in the above expression, we get:
Now we have to calculate the energy required.
where,
Q = energy required
= enthalpy of fusion of solid n-butane = 4.66 kJ/mol
n = moles = 1.00 mol
Now put all the given values in the above expression, we get:
Thus, the energy required to melt 58.3 g of solid n-butane is, 4.66 kJ