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ChemistryPrinciples of Instrumental Analysis(a) Interpretation: A calibration curve from the given data should be plotted. Concept introduction: A calibration curve or standard curve is a method used in analytical chemistry to determine the concentration of unknown sample by comparing to a set of samples with known concentrations.Start your trial now! First week only $4.99!*arrow_forward*

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7th Edition

Douglas A. Skoog + 2 others

Publisher: Cengage Learning

ISBN: 9781305577213

Chapter 14, Problem 14.11QAP

Interpretation Introduction

**(a)**

**Interpretation:**

A calibration curve from the given data should be plotted.

**Concept introduction:**

A calibration curve or standard curve is a method used in analytical chemistry to determine the concentration of unknown sample by comparing to a set of samples with known concentrations.

Interpretation Introduction

**(b)**

**Interpretation:**

Using the method of least squares, an equation relating absorbance and the concentration of Fe(II) should be developed.

**Concept introduction:**

For equations,

The slope of the line,

The intercept,

Interpretation Introduction

**(c)**

**Interpretation:**

The standard deviation of the slope and the intercept should be calculated.

**Concept introduction:**

Standard deviation about regression,

N − number of points used.

The standard deviation of the slope,

The standard deviation of the intercept,