   # A 400.0-mL sample of tap water is found to contain 0.22 mg of copper. What is the concentration of copper in milligrams per liter? ### Chemistry In Focus

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

#### Solutions

Chapter
Section ### Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 12, Problem 12.7YT
Textbook Problem
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## A 400.0-mL sample of tap water is found to contain 0.22 mg of copper. What is the concentration of copper in milligrams per liter?

Interpretation Introduction

Interpretation:

The concentration of copper in milligrams per liter is to be calculated.

Concept Introduction:

Concentration of a solution in milligrams per liter is the ratio of milligrams of solute to liters of solution.

Concentration of a solution in milligrams per liter is expressed as follows:

mg/L=milligram solutelitres solution

### Explanation of Solution

Given information:

Volume of tap water is 400 mL and mass of copper is 0.22 mg.

To convert mL to liters (L), first write the correct conversion factor by using the following relationship:

1 mL=103 L

Thus, the correct conversion factor will be (103 L1 mL).

Multiply the conversion factor with the given quantity and cancel units to get the desired quantity. Hence,

400 mL×103 LmL=0

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