CHEMISTRY:MOLECULAR NATURE (LL)W/ACCESS
7th Edition
ISBN: 9781119497325
Author: JESPERSEN
Publisher: WILEY
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Question
Chapter 2, Problem 129RQ
Interpretation Introduction
Interpretation:
The images are needed to be matched with the correct chemical formula, and the names of these compounds are to be written.
Concept Introduction:
A space-filling model, or calotte model, is a type of three-dimensional molecular model that uses Van der Waals radii. In these models, different atoms are shown as spheres of different colors fused together. Spheres in these models represent the size of the actual atom.
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There are quite a few pieces of information we can glean from a chemical formula. The first is the mass of that formula. In looking at the periodic table, we know that each element has its own mass. When we combine that information with how we interpret how many of each element there is in the formula that we just went over, we can calculate the mass of the compound. Using glucose as an example:
C6H12O6 tells us that glucose has 6 carbons, 12 hydrogens and 6 oxygens. On the periodic table, carbon has a mass of 12 g, hydrogen has a mass of 1 g, and oxygen has a mass of 16 g (I've rounded for ease. There will be times you use the entire mass provided on the table and times you won't -you'll know when).
C = 6 x 12g = 72g
H = 12 X 1g = 12 g
O = 6 X 16g = 96g
Add these values together and you get 180 g so glucose has a mass of 180 g.
Calculate the mass of H2SO4.
Give the chemical name for the ionic element/compound. Your answer will be marked incorrect if you did not spelled
the element's name correctly.
Mg2+
p3.
NO3
Fe2+
HCO3
Ag*
Be2+
C2H3O2 or CH3COO
A compound is 32.88% C, 4.14% H, 19.18% N and 43.80% O by mass, and it has a molar mass of 219 g/mol. What is the molecular formula of this compound?
When entering the formula place the elements in the following order: C, H, N, O. For subscripts, write the number after the element it corresponds to. For example, H2O should be written as H2O.
Chapter 2 Solutions
CHEMISTRY:MOLECULAR NATURE (LL)W/ACCESS
Ch. 2 - Practice Exercise 2.11
How many atoms of each...Ch. 2 - Prob. 2PECh. 2 - How many atoms of each clement appear on each side...Ch. 2 - Prob. 4PECh. 2 - Prob. 5PECh. 2 - Prob. 6PECh. 2 - Prob. 7PECh. 2 - Write the formulas for the compounds made from (a)...Ch. 2 - Practice Exercise 2.9 Write all the formulas for...Ch. 2 - Prob. 10PE
Ch. 2 - Prob. 11PECh. 2 - Practice Exercise 2.12
Write the formula for the...Ch. 2 - Prob. 13PECh. 2 - Prob. 14PECh. 2 - Prob. 15PECh. 2 - Prob. 16PECh. 2 - Prob. 17PECh. 2 - Write the formulas for (a) potassium chlorate, (b)...Ch. 2 - Prob. 19PECh. 2 - Prob. 20PECh. 2 - Practice Exercise 2.21
Name the following...Ch. 2 - Practice Exercise 2.22
Write formulas for the...Ch. 2 - Prob. 23PECh. 2 - Prob. 24PECh. 2 - 2.1 In the compounds formed by with chlorine, how...Ch. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - 2.4 In the refining of copper, sizable amounts of...Ch. 2 - 2.5 Why would you reasonably expect cadmium to be...Ch. 2 - 2.6 Using the symbol for nitrogen, 147N02,...Ch. 2 - Make a rough sketch of the periodic table and mark...Ch. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQCh. 2 - Which nonmetals occur as monatomic gases (i.e.,...Ch. 2 - Prob. 12RQCh. 2 - Which physical property of metalloids...Ch. 2 - Sketch the shape of the periodic table and mark...Ch. 2 - Most periodic tables have a heavy line that looks...Ch. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - 2.19 What are two ways to interpret a chemical...Ch. 2 - Prob. 20RQCh. 2 - Prob. 21RQCh. 2 - 2.22 Atoms of which elements are usually...Ch. 2 - 2.23 Atoms of which elements are usually...Ch. 2 - A DNA molecule is small in actual size but...Ch. 2 - What do we mean when we say a chemical equation is...Ch. 2 - 2.26 For a chemical reaction, what do we mean by...Ch. 2 - 2.27 The combustion of a thin wire of magnesium...Ch. 2 - Describe what kind of event must occur (involving...Ch. 2 - With what kind of elements do metals react?Ch. 2 - What is an ion? How does it differ from an atom or...Ch. 2 - 2.31 Why do we use the term formula unit for ionic...Ch. 2 - Prob. 32RQCh. 2 - Prob. 33RQCh. 2 - 2.34 How many electrons has a titanium atom lost...Ch. 2 - 2.35 If an atom gains an electron to become an...Ch. 2 - 2.36 How many electrons has a nitrogen atom gained...Ch. 2 - Prob. 37RQCh. 2 - Prob. 38RQCh. 2 - Prob. 39RQCh. 2 - Prob. 40RQCh. 2 - 2.41 What are the formulas (including charges) for...Ch. 2 - Prob. 42RQCh. 2 - Prob. 43RQCh. 2 - 2.44 Write the correct formulas for the compounds...Ch. 2 - 2.45 Write the unbalanced equations for the...Ch. 2 - 2.46 Write the unbalanced equations for the...Ch. 2 - 2.47 With what kind of elements do nonmetals...Ch. 2 - Which are the only elements that exist as free,...Ch. 2 - Prob. 49RQCh. 2 - 2.50 Which kind of elements normally combine to...Ch. 2 - Prob. 51RQCh. 2 - Prob. 52RQCh. 2 - 2.53 Without referring to Table 2.6 but using the...Ch. 2 - Prob. 54RQCh. 2 - 2.55 Astatine, a member of the halogen family,...Ch. 2 - Prob. 56RQCh. 2 - Write the chemical formulas for (a) methane, (b)...Ch. 2 - Prob. 58RQCh. 2 - Prob. 59RQCh. 2 - Prob. 60RQCh. 2 - Prob. 61RQCh. 2 - What is the difference between a binary compound...Ch. 2 - Prob. 64RQCh. 2 - Prob. 65RQCh. 2 - Prob. 66RQCh. 2 - 2.67 The compound is used in the tanning of...Ch. 2 - Asbestos, a known cancer-causing agent, has a...Ch. 2 - 2.69 Epsom salts is a hydrate of magnesium...Ch. 2 - Prob. 70RQCh. 2 - Prob. 71RQCh. 2 - Prob. 72RQCh. 2 - Write the chemical formula for the molecule...Ch. 2 - Write the chemical formula for the molecule...Ch. 2 - Prob. 75RQCh. 2 - Prob. 76RQCh. 2 - 2.77 How many atoms of each element are...Ch. 2 - 2.78 How many atoms of each kind are represented...Ch. 2 - 2.79 How many atoms of each kind are represented...Ch. 2 - 2.80 How many atoms of each kind are represented...Ch. 2 - Prob. 81RQCh. 2 - How many atoms of each element are represented in...Ch. 2 - 2.83 Consider the balanced equation
(a) How many...Ch. 2 - 2.84 Consider the balanced equation for the...Ch. 2 - Prob. 85RQCh. 2 - Prob. 86RQCh. 2 - Is the following chemical equation for the...Ch. 2 - 2.88 Is the following chemical equation balanced?...Ch. 2 - 2.89 Use the periodic table, but not Table 2.2, to...Ch. 2 - 2.90 Use the periodic table, but not Table 2.2, to...Ch. 2 - Prob. 91RQCh. 2 - Prob. 92RQCh. 2 - Prob. 93RQCh. 2 - Prob. 94RQCh. 2 - Prob. 95RQCh. 2 - Prob. 96RQCh. 2 - Prob. 97RQCh. 2 - Prob. 98RQCh. 2 - Prob. 99RQCh. 2 - Prob. 100RQCh. 2 - Prob. 101RQCh. 2 - Name the following molecular compounds:...Ch. 2 - Prob. 103RQCh. 2 - Prob. 104RQCh. 2 - Prob. 105RQCh. 2 - Prob. 106RQCh. 2 - Prob. 107RQCh. 2 - Identify each of the following as molecular or...Ch. 2 - Prob. 109RQCh. 2 - Prob. 110RQCh. 2 - Prob. 111RQCh. 2 - Prob. 112RQCh. 2 - 2.113 Which of the following formulas are...Ch. 2 - Which of the following formulas are incorrect?...Ch. 2 - Prob. 115RQCh. 2 - Prob. 116RQCh. 2 - The compounds Se2S6andSe2S4 have been shown to be...Ch. 2 - Prob. 118RQCh. 2 - The following are models of molecules of two...Ch. 2 - A student obtained a sample from an experiment...Ch. 2 - 2.121 Suppose you wanted, to separate the sample...Ch. 2 - 2.122 The elements in Group 1A and Group 7A of the...Ch. 2 - Prob. 123RQCh. 2 - Prob. 124RQCh. 2 - 2.125 Write the balanced chemical equation for the...Ch. 2 - 2.126 Write the balanced gas phase chemical...Ch. 2 - Bromine is a diatomic molecule, and it has two...Ch. 2 - Prob. 128RQCh. 2 - Prob. 129RQCh. 2 - Prob. 130RQCh. 2 - Prob. 131RQCh. 2 - Explore the internet and find a reliable source of...Ch. 2 - Spreadsheet applications such as Microsoft Excel...
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