6. What is the molecular formula for a compound that is 85.6% carbon and 14.4% hydrogen if the molecular mass is 84.162 grams? (Hint: Calculate the empirical formula first.) 7. What is the molecular formula for a compound that is 39.2% phosphorus and 60.8% oxygen if the molecular mass is 157.942 grams? (Hint: Calculate the empirical formula first.)

6. What is the molecular formula for a compound that is 85.6% carbon and 14.4% hydrogen if the molecular mass is 84.162 grams? (Hint: Calculate the empirical formula first.) 7. What is the molecular formula for a compound that is 39.2% phosphorus and 60.8% oxygen if the molecular mass is 157.942 grams? (Hint: Calculate the empirical formula first.)

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter2: Chemical Compounds

Section: Chapter Questions

Problem 77QRT: You have a pure sample of apholate, C12H24N9P3, a highly effective commercial insecticide. Calculate...

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

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6. What is the molecular formula for a compound that is 85.6% carbon and 14.4% hydrogen if
the molecular mass is 84.162 grams? (Hint: Calculate the empirical formula first.)
7. What is the molecular formula for a compound that is 39.2% phosphorus and 60.8% oxygen if
the molecular mass is 157.942 grams? (Hint: Calculate the empirical formula first.)

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