Skip to main content
Ch.2 - Atoms, Molecules, and Ions
Brown - Chemistry: The Central Science 15th Edition
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 15th EditionCh.2 - Atoms, Molecules, and Ions문제 11b
2장, 문제 11b

A 1.0-g sample of carbon dioxide (CO2) is fully decomposed into its elements, yielding 0.273 g of carbon and 0.727 g of oxygen. (b) If a sample of a different compound decomposes into 0.429 g of carbon and 0.571 g of oxygen, what is its ratio of the mass of O to C?

검증된 단계별 안내
1
Identify the masses of carbon and oxygen from the decomposition of the different compound: 0.429 g of carbon and 0.571 g of oxygen.
Calculate the ratio of the mass of oxygen to the mass of carbon by dividing the mass of oxygen by the mass of carbon.
Use the formula: \( \text{Ratio} = \frac{\text{Mass of Oxygen}}{\text{Mass of Carbon}} \).
Substitute the given values into the formula: \( \text{Ratio} = \frac{0.571}{0.429} \).
Simplify the calculated ratio to find the mass ratio of oxygen to carbon in the compound.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
2m
도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Law of Conservation of Mass

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. This principle is fundamental in stoichiometry, as it allows us to account for all the mass of reactants and products in a reaction. In the context of the question, it ensures that the total mass of carbon and oxygen produced from the decomposition of a compound equals the mass of the original sample.
추천 영상:
가이드 코스
01:48
Law of Conservation of Mass

Mass Ratio

The mass ratio is a comparison of the mass of one element to the mass of another element in a compound. It is calculated by dividing the mass of one element by the mass of another. In this question, determining the mass ratio of oxygen to carbon in the second compound is essential for understanding its composition and comparing it to the first compound.
추천 영상:
가이드 코스
02:14
Neutron-Proton Ratio

Stoichiometry

Stoichiometry is the area of chemistry that deals with the quantitative relationships between the substances involved in a chemical reaction. It allows chemists to predict the amounts of products formed or reactants consumed based on balanced chemical equations. In this question, stoichiometry is used to analyze the decomposition of compounds and calculate the mass ratios of the resulting elements.
추천 영상:
가이드 코스
01:16
Stoichiometry Concept
관련 실천
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. (a) Calculate the mass of oxygen per gram of nitrogen in each compound. 30.82 g N and 70.40 g O

371
views
교과서 질문

In the Millikan oil-drop experiment (see Figure 2.5), the tiny oil drops are observed through the viewing lens as rising, stationary, or falling, as shown here. The arrows indicate the rate of motion. a. What causes their rate of fall to vary from their rate in the absence of an electric field?

6
views
교과서 질문

Hydrogen sulfide is composed of two elements: hydrogen and sulfur. In an experiment, 6.500 g of hydrogen sulfide is fully decomposed into its elements. b. What fundamental law does this experiment demonstrate?

6
views
교과서 질문

A 1.0-g sample of carbon dioxide (CO2) is fully decomposed into its elements, yielding 0.273 g of carbon and 0.727 g of oxygen. (a) What is the ratio of the mass of O to C?

753
views
교과서 질문

The following diagram represents an ionic compound in which the red spheres represent cations and the blue spheres represent anions. Which of the following compounds is consistent with the drawing?

a. potassium bromide

b. potassium sulfate

c. calcium nitrate

d. iron(III) sulfate

2
views
교과서 질문

A 1.0-g sample of carbon dioxide (CO2) is fully decomposed into its elements, yielding 0.273 g of carbon and 0.727 g of oxygen. If a sample of a different compound decomposes into 0.429 g of carbon and 0.571 g of oxygen, what is its ratio of the mass of O to C? (c) According to Dalton's atomic theory, what is the empirical formula of the second compound?

2001
views