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Calculate the relative molecular masses of $C{{H}_{3}}COONa$

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Last updated date: 01st Mar 2024
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IVSAT 2024
Answer
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Hint: To calculate the molecular mass of the given compound, first you should know about the atomic mass of each atom present in that very compound and then, by adding each of them, you will come to know about the relative molecular mass of the compound. Now you can easily answer the given statement.

Complete answer:
First of all, let’s discuss what an atom is. An atom is the smallest particle of an element. Two or more atoms combine to form molecules and molecules combine to form compounds and elements.
Each atom consists of a solid mass that is present in the center of the atom known as the nucleus of the atom.
Each nucleus within the atom consists of two types of particles; the positively charged particles i.e. the protons along with the neutral particles i.e. the neutrons which carry no charge. These both i.e. the protons and the neutrons are collectively responsible for the mass of the nucleus.
Outside the nucleus are present the negatively charged particles i.e. electrons which are revolving around the nucleus in fixed circular orbits.
The number of protons in the nucleus represents the atomic number which is denoted by Z and the total number of protons and the neutrons in the nucleus represents the mass number which is denoted by A.
now considering the statement as-
We can calculate the molecular mass of $C{{H}_{3}}COONa$ by adding the atomic mass of each atom present in the given compound as;
$\begin{align}
  & C{{H}_{3}}COONa=12+3(1)+12+16+16+23 \\
 & \text{ =24+3+32+23} \\
 & \text{ =82} \\
\end{align}$
Thus, the relative molecular mass of $C{{H}_{3}}COONa$ is 82.

Note:
The number of electrons that are revolving around the nucleus and the number of protons which are present inside the nucleus are the same so that the atom as a whole is electrically neutral.
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