   Chapter 9, Problem 16CR ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

#### Solutions

Chapter
Section ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
1 views

# Calculate the percent by the mass of the element whose symbol occurs fist in the following compounds, formulas.l type='a'>   C 6 H 6 ( l ) i>   Na 2 SO 4 ( s ) i>   CS 2 ( l ) i>   AlCl 3 ( s ) i>   Cu 2 O ( s ) i>   CuO ( s ) i>   Co 2 O 3 ( s ) i>   C 6 H 12 O 6 ( s )

Interpretation Introduction

(a)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of an element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

Explanation

Molar mass of C6 H6 ( l ) = {(6 × 12.01) + (6 × 1.008)} g/mol = 78.108 g/mol

Mass of C present per mole of C6 H6 = (6 × 12.01) g/mol = 72.06 g/mol

Percent by mass %=Mass of particular

Interpretation Introduction

(b)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of an element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

Interpretation Introduction

(c)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of an element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

Interpretation Introduction

(d)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of an element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

Interpretation Introduction

(e)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of an element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

Interpretation Introduction

(f)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of an element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

Interpretation Introduction

(g)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of a element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

Interpretation Introduction

(h)

Interpretation:

The percent by mass of the element whose symbol occurs first in the following compound’s formula should be calculated.

Concept Introduction:

Percent by mass of a element can be calculated by the following equation.

Percent by mass %=Mass of particular element per mole of compoundMolar mass of the compound× 100.

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