Purchase Solution

A sample of unknown Y is subjected to elemental analysis

Not what you're looking for?

Ask Custom Question

1. A sample of unknown Y is subjected to elemental analysis. The follwoing precentages by weight are found to be:

C 40.0% H 6.7% O remainder of % by weight

The molar mass is found to be 60.0 g

A. Calculate the empirical formula (show work)

B. What is the molecular formula of unknown Y. (Include reasoning)

Purchase this Solution

Solution Summary

This solution calculates the empirical formula and shows the molecular formula of unknown Y. Work and reasoning included.

Solution Preview

To answer these questions, you need to take 100 grams of this substance...

In this 100 grams, 40 grams are only carbon...

6.7 grams are hydrogen....

The rest, 53.3 grams are oxygen....

Chemical formulas are simply mole ratios, and what we have above is mass ratios....we need ...

Purchase this Solution

Free BrainMass Quizzes
General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.


The quiz helps in revising basic concepts about thermochemistry.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.