ALEKS 360; 18WKS F/ GEN. CHEMISTRY >I<
13th Edition
ISBN: 9781264070077
Author: Chang
Publisher: INTER MCG
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Chapter 2.6, Problem 3PE
Write the empirical formula for caffeine (C8H10N4O2 ), a stimulant found in tea and coffee.
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Naming and drawing secondary
Write the systematic (IUPAC) name for each of the following organic molecules:
CH3
Z
structure
CH3
CH2
CH2
N-CH3
CH3-CH2-CH2-CH-CH3
NH
CH3-CH-CH2-CH2-CH2-CH2-CH2-CH3
Explanation
Check
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name
☐
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C
This question shows how molecular orbital (MO) theory can be used to understand the chemical
properties of elemental oxygen O₂ and its anionic derivative superoxide Oz.
a)
Draw the MO energy diagram for both O2 and O2. Clearly label your diagram with atomic orbital names
and molecular orbital symmetry labels and include electrons.
Draw the Lewis structure of O2. How does the MO description of O2 differ from the Lewis structure, and
how does this difference relate to the high reactivity and magnetic properties of oxygen?
) Use the MO diagram in (a) to explain the difference in bond length and bond energy between superoxide
ion (Oz, 135 pm, 360 kJ/mol) and oxygen (O2, 120.8 pm, 494 kJ/mol).
Please draw
Chapter 2 Solutions
ALEKS 360; 18WKS F/ GEN. CHEMISTRY >I<
Ch. 2.1 - The atoms of elements A (blue) and B (orange) form...Ch. 2.3 - How many protons, neutrons, and electrons are in...Ch. 2.3 - What is the atomic number of an element if one of...Ch. 2.3 - How many neutrons are in an atom of 114Cd?Ch. 2.3 - Which of the following two symbols provides more...Ch. 2.4 - In viewing the periodic table, do chemical...Ch. 2.4 - Identify the following as a metal, metalloid, or...Ch. 2.5 - What does S8 signify? How does it differ from 8S?Ch. 2.5 - Determine the number of protons and electrons for...Ch. 2.5 - Prob. 3RCF
Ch. 2.6 - Write the empirical formula for caffeine...Ch. 2.6 - Prob. 4PECh. 2.6 - Prob. 1RCFCh. 2.6 - Prob. 2RCFCh. 2.7 - Name the following compounds: (a) PbO and (b)...Ch. 2.7 - Prob. 6PECh. 2.7 - Name the following molecular compounds: (a) NF3...Ch. 2.7 - Prob. 8PECh. 2.7 - Prob. 9PECh. 2.7 - Prob. 1RCFCh. 2.7 - Prob. 2RCFCh. 2.7 - Prob. 3RCFCh. 2.7 - Prob. 4RCFCh. 2.7 - Prob. 5RCFCh. 2.8 - Prob. 1RCFCh. 2 - Prob. 2.1QPCh. 2 - Name the types of radiation known to be emitted by...Ch. 2 - Compare the properties of the following: ...Ch. 2 - What is meant by the term fundamental particle?Ch. 2 - Describe the contributions of the following...Ch. 2 - Describe the experimental basis for believing that...Ch. 2 - The diameter of a helium atom is about 1 102 pm....Ch. 2 - Prob. 2.8QPCh. 2 - Use the helium-4 isotope to define atomic number...Ch. 2 - Why do all atoms of an element have the same...Ch. 2 - What do we call atoms of the same elements with...Ch. 2 - Explain the meaning of each term in the symbol...Ch. 2 - What is the mass number of an iron atom that has...Ch. 2 - Calculate the number of neutrons in 239Pu.Ch. 2 - Prob. 2.15QPCh. 2 - Indicate the number of protons, neutrons, and...Ch. 2 - Write the appropriate symbol for each of the...Ch. 2 - Write the appropriate symbol for each of the...Ch. 2 - What is the periodic table, and what is its...Ch. 2 - State two differences between a metal and a...Ch. 2 - Write the names and symbols for four elements in...Ch. 2 - Define, with two examples, the following terms:...Ch. 2 - Prob. 2.23QPCh. 2 - Describe the changes in properties (from metals to...Ch. 2 - Consult a handbook of chemical and physical data...Ch. 2 - Group the following elements in pairs that you...Ch. 2 - Prob. 2.27QPCh. 2 - Prob. 2.28QPCh. 2 - Describe the two commonly used molecular models.Ch. 2 - Prob. 2.30QPCh. 2 - Prob. 2.31QPCh. 2 - Prob. 2.32QPCh. 2 - Identify the following as elements or compounds:...Ch. 2 - Prob. 2.34QPCh. 2 - Give the number of protons and electrons in each...Ch. 2 - Give the number of protons and electrons in each...Ch. 2 - Pair the following species that contain the same...Ch. 2 - Write the correct symbols for the atoms that...Ch. 2 - What does a chemical formula represent? What is...Ch. 2 - Define molecular formula and empirical formula....Ch. 2 - Give an example of a case in which two molecules...Ch. 2 - Prob. 2.42QPCh. 2 - Prob. 2.43QPCh. 2 - Prob. 2.44QPCh. 2 - Prob. 2.45QPCh. 2 - Prob. 2.46QPCh. 2 - What are the empirical formulas of the following...Ch. 2 - What are the empirical formulas of the following...Ch. 2 - Write the molecular formula of glycine, an amino...Ch. 2 - Write the molecular formula of ethanol. The color...Ch. 2 - Prob. 2.51QPCh. 2 - Prob. 2.52QPCh. 2 - Prob. 2.53QPCh. 2 - Prob. 2.54QPCh. 2 - Prob. 2.55QPCh. 2 - Prob. 2.56QPCh. 2 - Prob. 2.57QPCh. 2 - Prob. 2.58QPCh. 2 - Name these compounds: (a) Na2CrO4, (b) K2HPO4, (c)...Ch. 2 - Prob. 2.60QPCh. 2 - Prob. 2.61QPCh. 2 - Prob. 2.62QPCh. 2 - Sulfur (S) and fluorine (F) form several different...Ch. 2 - Prob. 2.64QPCh. 2 - Prob. 2.65QPCh. 2 - In which one of the following pairs do the two...Ch. 2 - Prob. 2.67QPCh. 2 - Prob. 2.68QPCh. 2 - Determine the molecular and empirical formulas of...Ch. 2 - What is wrong with or ambiguous about the phrase...Ch. 2 - Prob. 2.71QPCh. 2 - Which of the following are elements, which are...Ch. 2 - Prob. 2.73QPCh. 2 - Prob. 2.74QPCh. 2 - Each of the following pairs of elements will react...Ch. 2 - Match the descriptions [(a)(h)] with each of the...Ch. 2 - Explain why anions are always larger than the...Ch. 2 - Prob. 2.78QPCh. 2 - Caffeine, shown here, is a psychoactive stimulant...Ch. 2 - Prob. 2.80QPCh. 2 - Prob. 2.81QPCh. 2 - Prob. 2.82QPCh. 2 - Fill in the blanks in the following table.Ch. 2 - Prob. 2.84QPCh. 2 - Write the formula of the common ion derived from...Ch. 2 - Prob. 2.86QPCh. 2 - Prob. 2.87QPCh. 2 - Of the 118 elements known, only two are liquids at...Ch. 2 - Prob. 2.89QPCh. 2 - Prob. 2.90QPCh. 2 - Prob. 2.91QPCh. 2 - Prob. 2.92QPCh. 2 - Prob. 2.93QPCh. 2 - Prob. 2.94QPCh. 2 - List five elements each that are (a) named after...Ch. 2 - Prob. 2.96QPCh. 2 - Fluorine reacts with hydrogen (H) and deuterium...Ch. 2 - Prob. 2.98QPCh. 2 - Identify each of the following elements: (a) a...Ch. 2 - Prob. 2.100QPCh. 2 - Show the locations of (a) alkali metals, (b)...Ch. 2 - Fill the blanks in the following table.Ch. 2 - Prob. 2.103QPCh. 2 - In Section 2.1 it was pointed out that mass and...Ch. 2 - Draw all possible structural formulas of the...Ch. 2 - Prob. 2.106QPCh. 2 - Draw two different structural formulas based on...Ch. 2 - Prob. 2.108QPCh. 2 - Prob. 2.109QPCh. 2 - A monatomic ion has a charge of +2. The nucleus of...Ch. 2 - In the following 2 2 crossword, each letter must...Ch. 2 - Prob. 2.112QPCh. 2 - Prob. 2.113QPCh. 2 - Prob. 2.114QPCh. 2 - Prob. 2.115QPCh. 2 - Prob. 2.116QPCh. 2 - Prob. 2.117QPCh. 2 - Prob. 2.118QPCh. 2 - Prob. 2.119QPCh. 2 - Prob. 2.120QPCh. 2 - Prob. 2.121QPCh. 2 - One technique proposed for recycling plastic...
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