A sample of a pure aluminum halogen compound with a mass of 34.0 g contains 19.1 g of the unknown halogen. What is the percent composition of the unknown halogen in this compound? Enter your answer as a percent with the correct significant figures.

A sample of a pure aluminum halogen compound with a mass of 34.0 g contains 19.1 g of the unknown halogen. What is the percent composition of the unknown halogen in this compound? Enter your answer as a percent with the correct significant figures.

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 19PP

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The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

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A sample of a pure aluminum halogen compound with a mass of
34.0 g contains 19.1 g of the unknown halogen. What is the
percent composition of the unknown halogen in this compound?
Enter your answer as a percent with the correct significant
figures.

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