Question

In a common reaction in living things, glucose combines with oxygen to form carbon dioxide and water vapor. In an experiment on this reaction, the masses of glucose, oxygen, and carbon dioxide are measured. This data table shows the measurements.

What is the mass of the water vapor?

Responses

92 grams
92 grams

108 grams
108 grams

117 grams
117 grams

240 grams

Answer 1

The mass of the water vapor can be determined by using the principle of conservation of mass. In this reaction, glucose combines with oxygen to form carbon dioxide and water vapor.

To find the mass of the water vapor, we need to subtract the masses of glucose and carbon dioxide from the initial mass of the reactants.

Let's analyze the measurements given in the data table:

Mass of glucose: Unknown

Mass of oxygen: Unknown

Mass of carbon dioxide: Unknown

Unfortunately, the data table does not provide the masses of glucose, oxygen, and carbon dioxide. Therefore, we cannot calculate the mass of the water vapor based on the given information.

If you have access to the masses of glucose, oxygen, and carbon dioxide, please provide them so that we can calculate the mass of the water vapor using the conservation of mass principle.

Answer 2

The mass of water vapor can be determined by analyzing the balanced chemical equation. By calculating the moles of water vapor formed using the mole ratio and multiplying it by the molar mass of water, we can find the mass of water vapor was produced.

Step-by-step explanation:

The mass of water vapor can be determined by analyzing the balanced chemical equation. According to the equation, one molecule of glucose reacts with 6 molecules of oxygen to yield 6 molecules of carbon dioxide and 6 molecules of water. From the equation, we can see that the mole ratio of water to glucose is 6:1. Given the molar mass of glucose is 180.16 g/mol, we can calculate the mass of water vapor by multiplying the moles of glucose with the molar mass of water.

Assuming the mass of glucose used in the experiment is x grams, and it reacts completely, the moles of glucose will be x/180.16. Since the mole ratio of water to glucose is 6:1, the moles of water vapor formed will be 6 times that of glucose. So the moles of water vapor will be 6(x/180.16). Multiplying this by the molar mass of water (18.015 g/mol) will give us the mass of water vapor produced.

Therefore, the mass of water vapor can be calculated as:

Mass of water vapor = 6(x/180.16) * 18.015 g/mol = 0.6x g