**Problem:**A 2.00 g sample of unknown hydrocarbon is found to contain 1.50 g of carbon and 0.50 g of hydrogen. What is the compound’s percent composition by mass?**Options:**Select the correct answer below:- 75% carbon, 25% hydrogen- 25% carbon, 75% hydrogen- 50% carbon, 50% hydrogen- 67% carbon, 33% hydrogen

Answered: Image /qna-images/answer/d4cd08d1-b70b-4dca-ba75-3b55ce8389e3.jpg

Answered: A 2.00 g sample of unknown hydrocarbon…

A 2.00 g sample of unknown hydrocarbon is found to contain 1.50 g carbon and 0.50 g hydrogen. What is the compoun percent composition by mass?

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter3: Matter-properties And Changes

Section3.4: Elements And Compounds

Problem 23PP

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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.

Question

**Problem:**

A 2.00 g sample of unknown hydrocarbon is found to contain 1.50 g of carbon and 0.50 g of hydrogen. What is the compound’s percent composition by mass?

**Options:**

Select the correct answer below:

- 75% carbon, 25% hydrogen
- 25% carbon, 75% hydrogen
- 50% carbon, 50% hydrogen
- 67% carbon, 33% hydrogen

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