Study Guide for Campbell Biology
Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 2, Problem 4IQ

a.

Summary Introduction

To draw: An electron distribution diagram for hydrogen, 1H.

Introduction: The basic unit of matter that has the properties of a chemical element is called an atom. Atom is made up of subatomic particles (neutrons, protons, and electrons). The substance that is made from one type of atom is known as an element.

b.

Summary Introduction

To draw: An electron distribution diagram for carbon, 6C.

Introduction: Every element has smallest unit of matter that retains the properties of an element”. This smallest unit is called atom. There are three subatomic particles of an atom. These are electrons, protons, and neutrons.

c.

Summary Introduction

To draw: An electron distribution diagram for oxygen, 8O.

Introduction: In the simplest level of organization, human body consists of various chemical structures. These chemical structures include atoms, ions, and molecules. The atoms and molecules are made up of matter.

d.

Summary Introduction

To draw: An electron distribution diagram for sodium, 11Na.

Introduction: The basic unit of a matter which possesses the properties of a chemical element is defined as an atom. An atom is made up of nucleus in the center and one or more electrons surround the atomic nucleus.

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Compound A contains 63.68% C, 9.8% H, 12.38% N and the rest is O by mass. The empirical formula for compound A is? O a. C₂H₁1 NO3 O b. С₂H₁₁NO O c. none of these O d. C6H11NO2
A sample was analyzed using mass spectrophotometer and molecular ion peak was obtained at m/z 120. Base peak was seen at m/z 91 and another peak of was observed at m/z 92. UV spectroscopic analysis revealed the presence of an aromatic ring. Determine the compound and justify your answer. And draw the mass spectrum.
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