This new edition of CHEMISTRY continues to incorporate a strong molecular reasoning focus, amplified problem-solving exercises, a wide range of real-life examples and applications, and innovative technological resources. With this text's focus on molecular reasoning, your students will learn to think at the molecular level and make connections between molecular structure and macroscopic properties.
The Tenth Edition has been revised throughout and now includes a reorganization of the descriptive chemistry chapters to improve the flow of topics, a new basic math skills Appendix, an updated art program with new "talking labels" that fully explain what is going on in the figure, and much more. Please select an option. View More Purchase Options.
Chemistry 10th Edition. Kenneth W. View as Instructor. Whether you need access offline or online, in print or on your mobile device, we have cost saving options. Tell me about Cengage eTextbooks. Best value! Access your book immediately! Tell me about Rentals. Free eTextbook while your book ships Contract starts on the date of product shipment, not on date of purchase. ISBN: When your class uses a Cengage online homework platform, you always know how you're doing and what you need to study.
You'll get instant access to your assigned eTextbook, plus personalized learning tools like flashcards for studying. The formulas are different, so there are different numbers of atoms per molecule and, hence, different total numbers of atoms in equal numbers of molecules. Total The simplest formula is C19H28O2. Given that each molecule contains two O atoms, the molecular formula is C19H28O2. As a check on the MW calculated above, the MW of this formula is Element of Atoms Smallest 0.
Calculate the amount of O for a given amount of H in each compound: 1 x The masses of O that combine with a fixed mass of H in the two compounds are in the ratio of small whole numbers, 1 : 2. Alternatively, the masses of H that combine with a fixed mass of O could be compared. If the M2O substance is This means that if you had one mole of M2O: Note: The mass or weight ratio in any units is the same as that deduced in amus or grams, e.
Assume you spend one dollar to purchase each substance. To get the lb of nitrogen per dollar:? The chemical formula for calcium carbonate is CaCO3, and its molar mass is For the cations given, the group number is the same as the charge.
The formula for the anion formed from the nitrogen atom would be: N The uncertainty only has 2 significant digits 1. If the uncertainty were subtracted from 6. Molecular Formula. There is insufficient information since the oxygen used in combustion comes from the air in addition to the oxygen in the sample. However, in an actual situation, the price and concentration of Pure Ag2O and Ag2S both contain a very high percentage of silver.
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