INSTRUMENTAL ANALYSIS-ACCESS >CUSTOM<
INSTRUMENTAL ANALYSIS-ACCESS >CUSTOM<
7th Edition
ISBN: 9781337783439
Author: Skoog
Publisher: CENGAGE C
Question
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Chapter A1, Problem A1.3QAP
Interpretation Introduction

(a)

Interpretation:

The copper yield results are lowered by the value 0.5 mg. The percent relative error due to the source is to be determined when the weight of the copper sample is 25mg.

Concept introduction:

The following formula will be used for the calculation of the relative error-

Er=EmEtEt×100 ............….. (1)

Where,

Er = relative error

Em = measured value

Et = true value

Interpretation Introduction

(b)

Interpretation:

The copper yield results are lowered by the value 0.5 mg. The percent relative error due to the source is to be determined when the weight of the copper sample is 100mg.

Concept introduction:

The following formula will be used for the calculation of the relative error-

Er=EmEtEt×100 ............….. (1)

Where,

Er = relative error

Em = measured value

Et = true value

Interpretation Introduction

(c)

Interpretation:

The copper yield results are lowered by the value 0.5 mg. The percent relative error due to the source is to be determined when the weight of the copper sample is 250mg.

Concept introduction:

The following formula will be used for the calculation of the relative error-

Er=EmEtEt×100 ............….. (1)

Where,

Er = relative error

Em = measured value

Et = true value

Interpretation Introduction

(d)

Interpretation:

The copper yield results are lowered by the value 0.5 mg. The percent relative error due to the source is to be determined when the weight of the copper sample is 500mg.

Concept introduction:

The following formula will be used for the calculation of the relative error-

Er=EmEtEt×100 ............….. (1)

Where,

Er = relative error

Em = measured value

Et = true value

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When an unknown amine reacts with an unknown acid chloride, an amide with a molecular mass of 163 g/mol (M* = 163 m/z) is formed. In the infrared spectrum, important absorptions appear at 1661, 750 and 690 cm. The 13C NMR and DEPT spectra are provided. Draw the structure of the product as the resonance contributor lacking any formal charges. 13C NMR DEPT 90 200 160 120 80 40 0 200 160 120 80 40 0 DEPT 135 T 200 160 120 80 40 0 Draw the unknown amide. Select Dow Templates More Frage
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