(a)
Interpretation: To determine the molecular formula from the empirical formula.
Concept Introduction: Empirical formula would be a term used to describe a chemical formula that displays the most basic ratio of the components in a compound instead of the overall number of atoms in the molecule.
(a)
Answer to Problem 79A
The molecular formula will be
Explanation of Solution
The given empirical formula is
The molar mass of the compound is 90 g/mol
Molar mass of the empirical formula is 30 g/mol.
Molecular formula can be determined by using the formula:
The relation between molar mass and empirical formula can be written as:
Therefore, the molecular formula will be
(b)
Interpretation: To determine the molecular formula from the empirical formula.
Concept Introduction: Empirical formula would be a term used to describe a chemical formula that displays the most basic ratio of the components in a compound instead of the overall number of atoms in the molecule.
(b)
Answer to Problem 79A
The molecular formula will be
Explanation of Solution
The given empirical formula is
The molar mass of the compound is 472.2 g/mol
Molar mass of the empirical formula is 272 g/mol.
Molecular formula can be determined by using the formula:
The relation between molar mass and empirical formula can be written as:
Therefore, the molecular formula will be
Chapter 10 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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