Introductory Chemistry, Books a la Carte Plus MasteringChemistry with eText -- Access Card Package (5th Edition)
5th Edition
ISBN: 9780321934604
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter 1, Problem 22E
A chemist decomposes several samples of water into hydrogen and oxygen and measures the mass of the hydrogen and the oxygen obtained. The results are tabulated as follows.
| Sample Number | Grams of Hydrogen | Grams of Oxygen |
| 1 | 1.5 | 12 |
| 2 | 2 | 16 |
| 3 | 2.5 | 20 |
a. Summarize these observations in a short statement.
Next, the chemist decomposes several samples of carbon dioxide into carbon and oxygen. The results are tabulated as follows:
| Sample Number | Grams of Hydrogen | Grams of Oxygen |
| 1 | 0.5 | 1.3 |
| 2 | 1.0 | 2.7 |
| 3 | 1.5 | 4.0 |
b. Summarize these observations in a short statement.
c. Formulate a law from the observations in (a) and (b).
d. Formulate a theory that might explain your law in (c).
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20. A chemist decomposes several samples of water into hydro-
gen and oxygen and measures the mass of the hydrogen and
the oxygen obtained. The results are tabulated as follows.
Sample Number
Grams of Hydrogen
Grams of Oxygen
1
1.5
12
2
2
16
2.5
20
(a) Summarize these observations in a short statement.
Next, the chemist decomposes several samples of
carbon dioxide into carbon and oxygen. The results
are tabulated as follows:
Sample Number
Grams of Carbon Grams of Oxygen
1
0.5
1.3
2
1.0
2.7
1.5
4.0
(b) Summarize these observations in a short statement.
(c) Formulate a law from the observations in (a) and (b).
(d) Formulate a theory that might explain your law in (c).
Chapter 1 Solutions
Introductory Chemistry, Books a la Carte Plus MasteringChemistry with eText -- Access Card Package (5th Edition)
Ch. 1 - Where can you find chemicals? a. In a hardware...Ch. 1 - Q2. Which statement best defines chemistry?
a. The...Ch. 1 - According to the scientific method, what is a law?...Ch. 1 - Q4. Which statement is an example of an...Ch. 1 - Which characteristic is necessary for success in...Ch. 1 - Why does soda fizz?Ch. 1 - 2. What are chemicals? Give some examples.
Ch. 1 - Prob. 3ECh. 1 - 4. What is meant by the statement, “Matter does...Ch. 1 - Define chemistry.
Ch. 1 - 6. Many things that we take for granted in...Ch. 1 - 7. Explain the scientific method.
Ch. 1 - 8. What is wrong with the statement, “The...Ch. 1 - What is the difference between a law and a theory?Ch. 1 - 10. What is the difference between a hypothesis...Ch. 1 - What is wrong with the statement, It is just a...Ch. 1 - What is the law of conservation of mass, and who...Ch. 1 - What is the atomic theory, and who formulated it?Ch. 1 - A chemical experiment might look for one or more...Ch. 1 - Examine the opening figure of this chapter. Use...Ch. 1 - Examine Figure 1.1 and, from a molecular point of...Ch. 1 - Prob. 17ECh. 1 - 16. Classify each statement as an observation, a...Ch. 1 - 17. A student prepares several samples of the same...Ch. 1 - A student measures the volume of a gas sample at...Ch. 1 - A chemist in an imaginary universe does an...Ch. 1 - 20. A chemist decomposes several samples of water...Ch. 1 - 21. The manufacturer of a particular brand of...Ch. 1 - Prob. 24ECh. 1 - 23. In your own words, provide a brief definition...Ch. 1 - 24. How curious are you? How good are your...
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