1. A compound X containing carbon, hydrogen and oxygen only have the following composition by mass: C: 54.5% ; H: 9.10% ; O: 36.4% (Relative atomic masses: H = 1.0, C = 12.0, O = 16.0) (a) Calculate the empirical formula of the compound. Constituent atoms C H O % by mass Relative atomic mass Relative no. of mole of atoms Simplest mole ratio of atoms The empirical formula of compound X is ____________________. (b) Given that the relative molecular mass of compound X is 132. Find its molecular formula.
1. A compound X containing carbon, hydrogen and oxygen only have the following composition by mass: C: 54.5% ; H: 9.10% ; O: 36.4% (Relative atomic masses: H = 1.0, C = 12.0, O = 16.0) (a) Calculate the empirical formula of the compound. Constituent atoms C H O % by mass Relative atomic mass Relative no. of mole of atoms Simplest mole ratio of atoms The empirical formula of compound X is ____________________. (b) Given that the relative molecular mass of compound X is 132. Find its molecular formula.
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter2: Chemical Formulas, Equations, And Reaction Yields
Section: Chapter Questions
Problem 13P
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1. A compound X containing carbon, hydrogen and oxygen only have the following composition by mass:
C: 54.5% ; H: 9.10% ; O: 36.4%
(Relative atomic masses: H = 1.0, C = 12.0, O = 16.0) (a) Calculate the empirical formula of the compound.
Constituent atoms |
C |
H |
O |
% by mass |
|||
Relative |
|||
Relative no. of mole of atoms |
|||
Simplest mole ratio of atoms |
The empirical formula of compound X is ____________________.
(b) Given that the relative molecular mass of compound X is 132. Find its molecular formula.
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