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1 answer:
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Explanation:
Atomic number is defined as the number of an element which represents total number of protons.
When an atom is neutral then it means it contains same number of protons and electrons.
On the other hand, atomic mass is defined as the sum of total number of protons and neutrons present in an atom.
Protons of every element remains fixed because it shows the identity of each element but if we change the number of neutrons then also identity of the atom will remain fixed. This is because changing the number of neutrons will not show any change in number of protons.
For example, and
are isotopes of hydrogen and they have same number of protons but different number of neutrons.
Thus, we can conclude that number of neutrons can vary without changing the identity of the element.
Answer : The volume of solution required is, 2.93 L
The number of moles of formed from the reaction is, 0.662 moles.
Explanation :
First we have to calculate the initial moles of .
Now we have to calculate the moles of
The balanced chemical reaction is:
From the balanced chemical reaction we conclude that,
As, 1 mole of react with 2 moles of
So, 0.662 mole of react with
moles of
Now we have to calculate the volume of
Now we have to calculate the moles of
From the balanced chemical reaction we conclude that,
As, 1 mole of react to give 1 moles of
So, 0.662 mole of react to give 0.662 moles of
Thus, the number of moles of formed from the reaction is, 0.662 moles.