Concept explainers
(a)
Interpretation:
The total number of atoms present in a molecule of the compound citric acid is to be stated.
Concept introduction:
The statement that a compound contains the same elements in the same proportion by mass is stated by the law of definite composition. The chemical formula gives the composition of the compound.
(b)
Interpretation:
The total number of atoms present in a molecule of the compound lactic acid is to be stated.
Concept introduction:
The statement that a compound always contains the same elements in the same proportion by mass is stated by the law of definite composition. The chemical formula gives the composition of the compound.
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