
Concept explainers
Interpretation:
The empirical formula of lactic acid is to be determined with given mass of sample, carbon dioxide, and water.
Concept introduction:
Empirical formula is the simplest formula of any compound when written in the least possible whole number without altering the relative number of atoms.
The molecular mass of any compound is the sum of the
When any hydrocarbon has completely reacted with oxygen, then the product formed contains
Molar mass is calculated by adding masses of each and every element multiplied by their number of atoms (given in subscript). Its S.I. unit is
The number of moles is defined as the ratio of mass to the molar mass:
Here,
The mass of compound can be calculated as
Here,

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Chapter 3 Solutions
CHEMISTRY >CUSTOM<
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