General, Organic, and Biological Chemistry
7th Edition
ISBN: 9781285853918
Author: H. Stephen Stoker
Publisher: Cengage Learning
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Textbook Question
Chapter 4, Problem 4.120EP
Write chemical formulas for the following compounds.
- a. Potassium nitrate
- b. Potassium nitride
- c. Potassium cyanide
- d. Potassium hydroxide
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LABORATORY REPORT FORM
Part I. Determination of the Formula of a Known Hydrate
1. Mass of empty evaporating dish
3. Mass of hydrate
Using subtraction
or mass by difference,
find the mass of
the hydrate
76.96
-75.40
75.40g
76.968
1.568
01.56
76.90 g
2. Mass of evaporating dish + hydrate
4. Mass of evaporating dish + hydrate (after heating)
First 76.98 g
Third 76.66g
Second
Fourth (if necessary) 76.60g
5. Mass of anhydrate
6. Mass of water lost by the hydrate
7. Percent of water of hydration
(Show Calculations)
8. Moles of water
(Show Calculations)
mol
mass of water
=
MM of water (g/m)
9. Moles of anhydrate
(Show Calculations)
10. Ratio of moles of water to moles of anhydrate
11 F(Show Calculations)
11. Formula of hydrate
- Mass of water (g) x 100
% water hydration
g
g
%
Mass of hydrate (9) x IC
% = (Mass of hydrate- mass of an)
mass of hydrate (g)
% = (1.569-
× 100=
mol
1.569
mol Mol Mass of
anhydrate/MM
of anhydrate
12. What was the color of the hydrate?
blue
What was the color of the…
compared t-critical with t-calculated and 95% confidence interval to answer this question
Comparing two means. Horvat and co-workers used atomic absorption spectroscopy to determine the concentration of Hg in coal fly ash. Of particular interest to the authors was developing an appropriate procedure for digesting samples and releasing the Hg for analysis. As part of their study they tested several reagents for digesting samples. Their results using HNO3 and using a 1+3 mixture of HNO3 and HCl are shown here. All concentrations are given as ppb Hg sample.
HNO3: 161, 165, 160, 167, 166
1+3 HNO3–HCl: 159, 145, 140, 147, 143, 156
Determine whether there is a significant difference between these methods at the 95% confidence interval.
Chapter 4 Solutions
General, Organic, and Biological Chemistry
Ch. 4.1 - Prob. 1QQCh. 4.1 - Prob. 2QQCh. 4.1 - Prob. 3QQCh. 4.2 - How many valence electrons are present in an atom...Ch. 4.2 - Prob. 2QQCh. 4.2 - Prob. 3QQCh. 4.2 - Prob. 4QQCh. 4.2 - Which of the following elements would have the...Ch. 4.3 - Prob. 1QQCh. 4.3 - Prob. 2QQ
Ch. 4.3 - Prob. 3QQCh. 4.4 - In terms of subatomic particles, a Ca2+ ion...Ch. 4.4 - Prob. 2QQCh. 4.4 - Prob. 3QQCh. 4.4 - Prob. 4QQCh. 4.5 - An atom with a 1s22s22p4 electron configuration...Ch. 4.5 - Prob. 2QQCh. 4.5 - Prob. 3QQCh. 4.5 - Prob. 4QQCh. 4.5 - Prob. 5QQCh. 4.6 - Prob. 1QQCh. 4.6 - Prob. 2QQCh. 4.6 - Prob. 3QQCh. 4.7 - What is the chemical formula of the ionic compound...Ch. 4.7 - What is the chemical formula of the ionic compound...Ch. 4.7 - Given that Z2 ions are present in the ionic...Ch. 4.7 - Prob. 4QQCh. 4.8 - Prob. 1QQCh. 4.8 - Which of the following is a correct description of...Ch. 4.9 - Prob. 1QQCh. 4.9 - Prob. 2QQCh. 4.9 - Prob. 3QQCh. 4.9 - Prob. 4QQCh. 4.9 - Prob. 5QQCh. 4.9 - Prob. 6QQCh. 4.9 - The correct name for the binary ionic compound...Ch. 4.9 - Prob. 8QQCh. 4.10 - Prob. 1QQCh. 4.10 - Which of the following statements about polyatomic...Ch. 4.10 - The nitrate, sulfate, and phosphate ions have,...Ch. 4.10 - Prob. 4QQCh. 4.11 - Prob. 1QQCh. 4.11 - Prob. 2QQCh. 4.11 - Prob. 3QQCh. 4.11 - Prob. 4QQCh. 4.11 - Prob. 5QQCh. 4.11 - What is the chemical formula for the compound...Ch. 4 - Contrast the two general types of chemical bonds...Ch. 4 - Contrast the two general types of chemical...Ch. 4 - How many valence electrons do atoms with the...Ch. 4 - How many valence electrons do atoms with the...Ch. 4 - Prob. 4.5EPCh. 4 - Prob. 4.6EPCh. 4 - Write the complete electron configuration for each...Ch. 4 - Write the complete electron configuration for each...Ch. 4 - Prob. 4.9EPCh. 4 - For each of the following pairs of representative...Ch. 4 - How many of the highlighted elements in the...Ch. 4 - How many of the highlighted elements in the...Ch. 4 - Draw Lewis symbols for atoms of each of the...Ch. 4 - Draw Lewis symbols for atoms of each of the...Ch. 4 - Each of the following Lewis symbols represents a...Ch. 4 - Each of the following Lewis symbols represents a...Ch. 4 - Prob. 4.17EPCh. 4 - Prob. 4.18EPCh. 4 - What is the chemical property of the noble gases...Ch. 4 - Prob. 4.20EPCh. 4 - Prob. 4.21EPCh. 4 - Prob. 4.22EPCh. 4 - Give the chemical symbol for each of the following...Ch. 4 - Give the chemical symbol for each of the following...Ch. 4 - What would be the chemical symbol for an ion with...Ch. 4 - What would be the chemical symbol for an ion with...Ch. 4 - Fill in the blanks in each line in the following...Ch. 4 - Fill in the blanks in each line in the following...Ch. 4 - Fill in the blanks in each line of the following...Ch. 4 - Fill in the blanks in each line of the following...Ch. 4 - Identify element X by giving its chemical symbol,...Ch. 4 - Prob. 4.32EPCh. 4 - Prob. 4.33EPCh. 4 - Prob. 4.34EPCh. 4 - Prob. 4.35EPCh. 4 - Draw Lewis symbols for the following ions. a. O2...Ch. 4 - What is the charge on the monatomic ion formed by...Ch. 4 - What is the charge on the monatomic ion formed by...Ch. 4 - Indicate the number of electrons lost or gained...Ch. 4 - Indicate the number of electrons lost or gained...Ch. 4 - Which noble gas has an electron configuration...Ch. 4 - Prob. 4.42EPCh. 4 - Which noble gas is isoelectronic with each of the...Ch. 4 - Which noble gas is isoelectronic with each of the...Ch. 4 - Prob. 4.45EPCh. 4 - Indicate whether or not each of the following...Ch. 4 - Prob. 4.47EPCh. 4 - Prob. 4.48EPCh. 4 - Prob. 4.49EPCh. 4 - Write the electron configuration of the following....Ch. 4 - How many valence electrons are present in each of...Ch. 4 - Prob. 4.52EPCh. 4 - Using Lewis structures, show how ionic compounds...Ch. 4 - Using Lewis structures, show how ionic compounds...Ch. 4 - The following Lewis symbols for ions have the...Ch. 4 - Prob. 4.56EPCh. 4 - Prob. 4.57EPCh. 4 - Prob. 4.58EPCh. 4 - Prob. 4.59EPCh. 4 - Prob. 4.60EPCh. 4 - The component elements for four binary ionic...Ch. 4 - Prob. 4.62EPCh. 4 - Write the complete chemical formula (symbol and...Ch. 4 - Write the complete chemical formula (symbol and...Ch. 4 - Write the chemical formula for the ionic compound...Ch. 4 - Prob. 4.66EPCh. 4 - Prob. 4.67EPCh. 4 - What is the chemical formula of the ionic compound...Ch. 4 - A representative element (X) forms an ion with a 2...Ch. 4 - A representative element (Z) forms an ion with a...Ch. 4 - Prob. 4.71EPCh. 4 - The following questions pertain to the ionic...Ch. 4 - Prob. 4.73EPCh. 4 - Prob. 4.74EPCh. 4 - Prob. 4.75EPCh. 4 - Prob. 4.76EPCh. 4 - Prob. 4.77EPCh. 4 - Prob. 4.78EPCh. 4 - Prob. 4.79EPCh. 4 - Which of the following binary compounds would be...Ch. 4 - Name the following binary ionic compounds, each of...Ch. 4 - Name the following binary ionic compounds, each of...Ch. 4 - Calculate the charge on the metal ion in the...Ch. 4 - Calculate the charge on the metal ion in the...Ch. 4 - Prob. 4.85EPCh. 4 - Prob. 4.86EPCh. 4 - Prob. 4.87EPCh. 4 - Prob. 4.88EPCh. 4 - Name each of the following binary ionic compounds....Ch. 4 - Name each of the following binary ionic compounds....Ch. 4 - Prob. 4.91EPCh. 4 - Name each compound in the following pairs of...Ch. 4 - Prob. 4.93EPCh. 4 - Write chemical formulas for the following binary...Ch. 4 - Prob. 4.95EPCh. 4 - Write chemical formulas for the following binary...Ch. 4 - Prob. 4.97EPCh. 4 - Prob. 4.98EPCh. 4 - Fill in the blanks in each line of the following...Ch. 4 - Prob. 4.100EPCh. 4 - Prob. 4.101EPCh. 4 - Prob. 4.102EPCh. 4 - Prob. 4.103EPCh. 4 - How many oxygen atoms are present in each of the...Ch. 4 - Prob. 4.105EPCh. 4 - Prob. 4.106EPCh. 4 - Prob. 4.107EPCh. 4 - Prob. 4.108EPCh. 4 - Prob. 4.109EPCh. 4 - Prob. 4.110EPCh. 4 - How many ions are present per formula unit in each...Ch. 4 - Prob. 4.112EPCh. 4 - Name the following compounds, all of which contain...Ch. 4 - Prob. 4.114EPCh. 4 - Prob. 4.115EPCh. 4 - Prob. 4.116EPCh. 4 - Prob. 4.117EPCh. 4 - Write formulas for the following compounds, all of...Ch. 4 - Write chemical formulas for the following...Ch. 4 - Write chemical formulas for the following...Ch. 4 - Prob. 4.121EPCh. 4 - Prob. 4.122EPCh. 4 - Prob. 4.123EPCh. 4 - Prob. 4.124EP
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