교과서 질문
A chemist finds that 30.82 g of nitrogen will react with 17.60, 35.20, 70.40, or 88.00 g of oxygen to form four different compounds. (b) How do the numbers in part (a) support Dalton's atomic theory?
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Ch.2 - Atoms, Molecules, and Ions
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
2장, 문제 13a3
A chemist finds that 30.82 g of nitrogen will react with 17.60, 35.20, 70.40, or 88.00 g of oxygen to form four different compounds. (a) Calculate the mass of oxygen per gram of nitrogen in each compound. 30.82 g N and 70.40 g O
검증된 단계별 안내1
Identify the given masses: 30.82 g of nitrogen and 70.40 g of oxygen.
To find the mass of oxygen per gram of nitrogen, divide the mass of oxygen by the mass of nitrogen.
Set up the calculation as follows: \( \text{Mass of oxygen per gram of nitrogen} = \frac{\text{Mass of oxygen}}{\text{Mass of nitrogen}} \).
Substitute the given values into the equation: \( \frac{70.40 \text{ g O}}{30.82 \text{ g N}} \).
Simplify the expression to find the mass of oxygen per gram of nitrogen.
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주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Stoichiometry
Stoichiometry is the branch of chemistry that deals with the quantitative relationships between the reactants and products in a chemical reaction. It allows chemists to calculate the amounts of substances consumed and produced in a reaction based on balanced chemical equations. Understanding stoichiometry is essential for determining the mass ratios of elements in compounds formed from reactions.
추천 영상:
가이드 코스
01:16
Stoichiometry Concept
Mass Ratio
The mass ratio is a comparison of the mass of one substance to the mass of another substance in a chemical reaction. In this context, it refers to the amount of oxygen that reacts with a given mass of nitrogen. Calculating the mass ratio helps in understanding the proportions of elements in different compounds and is crucial for analyzing the results of the chemist's findings.
추천 영상:
가이드 코스
02:14Neutron-Proton Ratio
Empirical Formula
The empirical formula represents the simplest whole-number ratio of the elements in a compound. It provides insight into the composition of the compound without detailing the actual number of atoms. By calculating the mass of oxygen per gram of nitrogen, one can derive the empirical formula for the compounds formed, which is important for identifying and classifying the compounds based on their elemental composition.
추천 영상:
가이드 코스
02:26Empirical vs Molecular Formula
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