Sodium chloride is used for melting ice in the winter months. This compound contains 1.54 g of...

Question:

Sodium chloride is used for melting ice in the winter months. This compound contains {eq}\rm 1.54\ g {/eq} of chlorine for every {eq}\rm 1.00\ g {/eq} of sodium. Which of the following mixtures would react to produce sodium chloride with no sodium or chlorine remaining? (Select all answers that apply.)

a. {eq}\rm 12.3 \ g {/eq} of sodium and {eq}\rm 18.9\ g {/eq} of chlorine.

b. {eq}\rm 5.11\ g {/eq} of sodium and {eq}\rm 6.90\ g {/eq} of chlorine.

c. {eq}\rm 5.31\ g {/eq} of sodium and {eq}\rm 8.81\ g {/eq} of chlorine.

d. {eq}\rm 10.5\ g {/eq} of sodium and {eq}\rm 16.2\ g {/eq} of chlorine.

Mass Ratios in Compounds:

A compound is different from an alloy or a mixture of substances in that in a compound, the ratios of the masses of the individual elements are fixed, whatever may be the provenance of the compound. This is not the case with alloys and mixtures, which may contain arbitrary amounts of the individual elements. Examples of compounds are sodium chloride, magnesium sulfate, vinegar, etc, and examples of alloys are stainless steel, bronze, brass, duralumin, etc. Milk, paint, soap and such are mixtures.

Answer and Explanation: 1

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The mass ratio of the chlorine to the sodium in common salt is reported to be 1.54:1. All sodium chloride samples must contain sodium and chloride...

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What Is a Compound? - Combining Elements with Chemical Bonds

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Chapter 2 / Lesson 3
35K

In this lesson, learn what compounds and elements are, and see examples of each. Also, learn how atoms in a compound are held together.


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