Skip to main content
Ch.2 - Atoms, Molecules, and Ions
Chapter 2, Problem 11a

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?

Verified Solution

Video duration:
1m
This video solution was recommended by our tutors as helpful for the problem above.
Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mass Ratio

The mass ratio is a comparison of the mass of one substance to the mass of another. In this context, it refers to the ratio of the mass of oxygen to the mass of carbon in the decomposition of carbon dioxide. This ratio is calculated by dividing the mass of oxygen by the mass of carbon, providing insight into the relative amounts of each element in the compound.
Recommended video:
Guided course
02:14
Neutron-Proton Ratio

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 crucial in understanding that the total mass of the products (carbon and oxygen) must equal the mass of the original compound (carbon dioxide). It ensures that when CO2 decomposes, the masses of the resulting elements can be accurately accounted for.
Recommended video:
Guided course
01:48
Law of Conservation of Mass

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 predict the amounts of substances consumed and produced in a reaction. In this case, stoichiometry helps in understanding how the masses of carbon and oxygen relate to each other after the decomposition of CO2.
Recommended video:
Guided course
01:16
Stoichiometry Concept
Related Practice
Textbook Question

Five of the boxes in the following periodic table are colored. Predict the charge on the ion associated with each of these elements.

354
views
Textbook Question

The following diagram represents an ionic compound in which the red spheres represent cations and the blue spheres represent anions. Which of the following formulas is consistent with the drawing? KBr, K2SO4, Ca1NO322, Fe21SO423.

636
views
1
rank
Textbook Question

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. (a) What causes their rate of fall to vary from their rate in the absence of an electric field?

420
views
Textbook Question

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?

829
views
Textbook Question

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?

2000
views
Textbook Question

Sodium reacts with oxygen in air to form two compounds: sodium oxide and sodium peroxide. In forming sodium oxide, 23.0 g of sodium combines with 8.0 g of hydrogen. In forming sodium peroxide, 23.0 g of sodium combines with 16.0 g of oxygen. (b) What fundamental law does this experiment demonstrate?

5860
views