Interpretation: A concept map needs to be designed to show the conversion factors that convert mass, number of moles and number of particles to each other.
Concept introduction: The relation between the number of moles and the mass of a substance is represented as follows:
Here, m is mass and M is molar mass.
Also, the number of moles is related to
Thus, the relation between the number of units and mass will be:
Answer to Problem 28SSC
Explanation of Solution
1 mol of any substance has
To start a concept map, the number of moles can be considered to be known.
Let the number of moles of a substance be n mol.
Now, for all the substances, 1 mol contains
Also, the mass of 1 mol of a substance is known as molar mass. The relation between the number of moles, mass and molar mass is as follows:
Here, the number of moles can be written in terms of the number of particles as follows:
Thus,
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Chemistry: Matter and Change
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