EBK EXPLORING CHEMICAL ANALYSIS
EBK EXPLORING CHEMICAL ANALYSIS
5th Edition
ISBN: 8220101443908
Author: Harris
Publisher: MAC HIGHER
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Chapter 1, Problem 1.18P
Interpretation Introduction

Interpretation:

The molar concentration of 0.2 ppb of C20H42 in a sample of rainwater has to be calculated.

Concept Introduction:

Parts Per Billion refers to a term that expresses concentration of certain substance in a mixture of substances.   It is denoted as ppb.  It is represented as,

    ppb = mass of substancemass of sample×109

In solution concentrations, 1 ppb is equivalent to 1 ng/mL or 1 μg/L.

Molarity is a concentration term that is used to express the concentration of the solute in solution.  It is represented as,

    molarity = no.of moles of solutevolume of solution in L

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