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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 4, Problem 28E
Textbook Problem
309 views

Give a chemical formula for each compound:

a. sulfur trioxide

b. phosphorus pentachloride

c. carbon disulfide

d. silicon tetrachloride

e. potassium hydroxide

Interpretation Introduction

Interpretation:

The chemical formula for each of the given compounds is to be given.

Concept Introduction:

Two or more different elements or ions linked by chemical bonds in definite proportions, is known as a compound.

A set of chemical symbols represent the elements that exist in a compound.

The more metallic element is generally written first, and the less metallic element is written next for the naming of a molecular compound.

The prefix represents the number of atoms of each element present in each molecule and a suffix ide is used with the second element.

Ionic compounds are named by writing the name of cation (metal), followed by anion (non-metal) with a suffix “ide”.

While naming the ionic compounds prefixes such as di or tri are not used to indicate any number of atoms.

Explanation of Solution

a) Sulfur trioxide

The compound sulfur trioxide is formulated according to the first element sulfur, with no subscript; and the second element trioxide, which is oxygen atom with the subscript 3 to indicate the presence of three oxygen atoms.

Therefore, the complete formula for sulfur trioxide is SO3.

b) Phosphorous pentachloride

The compound phosphorous pentachloride is formulated according to the first element phosphorous, with no subscript; and the second element pentachloride, which is represented with the subscript 5 to indicate the presence of five chlorine atoms.

Therefore, the complete formula for phosphorous pentachloride is PCl5.

c) Carbon disulfide

The compound carbon disulfide is formulated according to the first element carbon, with no subscript; and the second element disulfide, which is sulfur atom with subscript 2 that indicates the presence of two sulfur atoms

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Chapter 4 Solutions

Chemistry In Focus
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