Concept explainers
Interpretation:
The method for conversion between moles of substance to grams of a substance should be determined.
Concept Introduction:
Mole is SI unit which is used to measure the quantity of the substance. It is the quantity of a substance which contains same number of atoms as present in accurately 12.00 g of carbon-12 is known as mole.
The one mole of any substance is equal to the
Answer to Problem 1E
Mass of substance in g is obtained by multiplying molar mass of a substance with number of moles of substance.
Explanation of Solution
Number of moles is defined as the ratio of mass to the molar mass of the substance.
The mathematical expression is given as:
Since, unit of number of moles = mole
Unit of molar mass = g/mole
Therefore,
Thus, number of moles of a substance is converted into grams of a substance.
For an example:
Number of moles of a substance = 2 moles
Molar mass of a substance = 2 g/mole
Conversion of number of moles to mass is shown as:
Put the values,
Thus, by multiplication between molar mass and number of moles, mass of a substance in g is obtained.
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