Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Chapter 2, Problem 106QRT
Interpretation Introduction
Interpretation:
From the given symbols
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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.
Question 2. Tracing isotopes. Place asterisks indicating the position of the isotope in the molecules
shown to the right – if the product contains no isotope label . circle "NONE".
CH,OH
ČH2
A)
or NONE
он
Но
ČH2
OH
ÓH
čo-SCOA
CO-
COO
H2C*
B)
Но —с—н
H-C-čoO
or NONE
Н—с—н
Но —с —н
CO-
*COO
CoO
*c=0
ONE turn of the TCA cycle
C)
or NONE
H-C-H
H-C-H
COO
COO
› On another planet, the isotopes of titanium have the given natural abundances.
Abundance
Mass (u)
78.600%
45.95263
19.700%
47.94795
1.700%
49.94479
Isotope
46
Ti
48
Ti
50
Ti
What is the average atomic mass of titanium on that planet?
average atomic mass=
u
Chapter 2 Solutions
Chemistry: The Molecular Science
Ch. 2.1 - When you comb your hair on a dry day, your hair...Ch. 2.2 - Prob. 2.1PSPCh. 2.2 - Prob. 2.2PSPCh. 2.2 - Prob. 2.2CECh. 2.2 - Prob. 2.3PSPCh. 2.3 - Prob. 2.4PSPCh. 2.3 - A student in your chemistry class tells you that...Ch. 2.3 - Prob. 2.5PSPCh. 2.3 - Prob. 2.4CECh. 2.3 - Prob. 2.5CE
Ch. 2.4 - Prob. 2.6PSPCh. 2.4 - Prob. 2.6CECh. 2.4 - Prob. 2.7PSPCh. 2.4 - Prob. 2.8PSPCh. 2.5 - Prob. 2.9PSPCh. 2.5 - Prob. 2.10PSPCh. 2.6 - Prob. 2.7CECh. 2.7 - Prob. 2.8CECh. 2.7 - Prob. 2.11PSPCh. 2.7 - Prob. 2.9ECh. 2.8 - Prob. 2.12PSPCh. 2.8 - Prob. 2.10ECh. 2.9 - Prob. 2.11ECh. 2.9 - Prob. 2.12ECh. 2.9 - Prob. 2.13CECh. 2.9 - According to Table 2.10, five constitutional...Ch. 2.11 - Calculate (a) the amount of Ti atoms in 4.00 g...Ch. 2.11 - Prob. 2.15CECh. 2.11 - Prob. 2.16ECh. 2.11 - Prob. 2.17CECh. 2.11 - Prob. 2.18ECh. 2.11 - Prob. 2.19ECh. 2.11 - Prob. 2.14PSPCh. 2.11 - Prob. 2.15PSPCh. 2.11 - Prob. 2.16PSPCh. 2.11 - Prob. 2.20CECh. 2.12 - Prob. 2.17PSPCh. 2.12 - Prob. 2.18PSPCh. 2.12 - Prob. 2.21ECh. 2.12 - Hydrazine is composed of 87.42% nitrogen and...Ch. 2.12 - Prob. 2.20PSPCh. 2.12 - Prob. 2.22ECh. 2 - An isotope of an element contains 63 protons and...Ch. 2 - Prob. IISPCh. 2 - Prob. IIISPCh. 2 - Dioxathion, a pesticide, contains carbon,...Ch. 2 - Prob. 1QRTCh. 2 - Prob. 2QRTCh. 2 - Prob. 3QRTCh. 2 - Prob. 4QRTCh. 2 - Prob. 5QRTCh. 2 - Prob. 6QRTCh. 2 - Prob. 7QRTCh. 2 - Prob. 8QRTCh. 2 - Prob. 9QRTCh. 2 - Prob. 10QRTCh. 2 - Match these by placing the correct notation in the...Ch. 2 - Prob. 12QRTCh. 2 - Prob. 13QRTCh. 2 - Prob. 14QRTCh. 2 - Prob. 15QRTCh. 2 - Prob. 16QRTCh. 2 - Prob. 17QRTCh. 2 - Prob. 18QRTCh. 2 - Prob. 19QRTCh. 2 - Prob. 20QRTCh. 2 - Prob. 21QRTCh. 2 - Prob. 22QRTCh. 2 - Prob. 23QRTCh. 2 - Prob. 24QRTCh. 2 - Prob. 25QRTCh. 2 - Prob. 26QRTCh. 2 - Prob. 27QRTCh. 2 - Prob. 28QRTCh. 2 - Argon has three naturally occurring isotopes:...Ch. 2 - Prob. 30QRTCh. 2 - Prob. 31QRTCh. 2 - Prob. 32QRTCh. 2 - Prob. 33QRTCh. 2 - Prob. 34QRTCh. 2 - Prob. 35QRTCh. 2 - Prob. 36QRTCh. 2 - Prob. 37QRTCh. 2 - Prob. 38QRTCh. 2 - Prob. 39QRTCh. 2 - Prob. 40QRTCh. 2 - Prob. 41QRTCh. 2 - Prob. 42QRTCh. 2 - Prob. 43QRTCh. 2 - Prob. 44QRTCh. 2 - Prob. 45QRTCh. 2 - Prob. 46QRTCh. 2 - Prob. 47QRTCh. 2 - Prob. 48QRTCh. 2 - Prob. 49QRTCh. 2 - Prob. 50QRTCh. 2 - Prob. 51QRTCh. 2 - Prob. 52QRTCh. 2 - Prob. 53QRTCh. 2 - Prob. 54QRTCh. 2 - Prob. 55QRTCh. 2 - Prob. 56QRTCh. 2 - Prob. 57QRTCh. 2 - Prob. 58QRTCh. 2 - Prob. 59QRTCh. 2 - Prob. 60QRTCh. 2 - Prob. 61QRTCh. 2 - Prob. 62QRTCh. 2 - Prob. 63QRTCh. 2 - Prob. 64QRTCh. 2 - Prob. 65QRTCh. 2 - Prob. 66QRTCh. 2 - Prob. 67QRTCh. 2 - Prob. 68QRTCh. 2 - Prob. 69QRTCh. 2 - Prob. 70QRTCh. 2 - Prob. 71QRTCh. 2 - Prob. 72QRTCh. 2 - Prob. 73QRTCh. 2 - Prob. 74QRTCh. 2 - If you have a ring that contains 1.94 g gold,...Ch. 2 - You have a pure sample of the antiseptic...Ch. 2 - You have a pure sample of apholate, C12H24N9P3, a...Ch. 2 - Prob. 78QRTCh. 2 - Prob. 79QRTCh. 2 - Prob. 80QRTCh. 2 - Prob. 81QRTCh. 2 - Prob. 82QRTCh. 2 - Prob. 83QRTCh. 2 - Prob. 84QRTCh. 2 - Prob. 85QRTCh. 2 - Prob. 86QRTCh. 2 - Prob. 87QRTCh. 2 - Prob. 88QRTCh. 2 - Prob. 89QRTCh. 2 - Prob. 90QRTCh. 2 - Quinine (molar mass = 324.41 g/mol) is used as a...Ch. 2 - Prob. 92QRTCh. 2 - The mineral uraninite is a uranium oxide that is...Ch. 2 - Carbonic anhydrase, an important enzyme in...Ch. 2 - Nitrogen fixation in the root nodules of peas and...Ch. 2 - Disilane, Si2Hx, contains 90.28% silicon by mass....Ch. 2 - Chalky, white crystals in mineral collections are...Ch. 2 - A well-known reagent in analytical chemistry,...Ch. 2 - Prob. 99QRTCh. 2 - Prob. 100QRTCh. 2 - The density of a solution of sulfuric acid is...Ch. 2 - Prob. 102QRTCh. 2 - Prob. 103QRTCh. 2 - Prob. 104QRTCh. 2 - Prob. 105QRTCh. 2 - Prob. 106QRTCh. 2 - Prob. 107QRTCh. 2 - The Statue of Liberty in New York harbor is made...Ch. 2 - Prob. 109QRTCh. 2 - Prob. 110QRTCh. 2 - Prob. 111QRTCh. 2 - Prob. 112QRTCh. 2 - Prob. 113QRTCh. 2 - Prob. 114QRTCh. 2 - Prob. 115QRTCh. 2 - Prob. 116QRTCh. 2 - Prob. 117QRTCh. 2 - Prob. 118QRTCh. 2 - Prob. 119QRTCh. 2 - Prob. 120QRTCh. 2 - Prob. 121QRTCh. 2 - Prob. 122QRTCh. 2 - Prob. 123QRTCh. 2 - Prob. 124QRTCh. 2 - Prob. 125QRTCh. 2 - Prob. 126QRTCh. 2 - Prob. 127QRTCh. 2 - Prob. 128QRTCh. 2 - Prob. 129QRTCh. 2 - The element bromine is Br2, so the mass of a Br2...Ch. 2 - Uranium is used as a fuel, primarily in the form...Ch. 2 - Prob. 132QRTCh. 2 - Hemoglobin is an iron-containing protein (molar...Ch. 2 - There are three naturally occurring isotopes of...Ch. 2 - Prob. 135QRTCh. 2 - Prob. 136QRTCh. 2 - Prob. 137QRTCh. 2 - An adult human body contains 6.0 L blood, which...Ch. 2 - Prob. 139QRTCh. 2 - Prob. 140QRTCh. 2 - Prob. 141QRTCh. 2 - The present average concentration (mass percent)...Ch. 2 - Prob. 144QRTCh. 2 - A 4.22-g mixture of calcium chloride and sodium...Ch. 2 - A certain metal, M, forms two oxides, M2O and MO....Ch. 2 - If you heat Al with an element from Group 6A, an...Ch. 2 - Prob. 2.ACPCh. 2 - The age of the universe is unknown, but some...Ch. 2 - Prob. 2.CCPCh. 2 - Prob. 2.DCPCh. 2 - Prob. 2.ECP
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