Question

In a careful experiment, a chemist burns 15.4 kg of wood in a fireplace. The chemist collects all of the substances produced by the fire. He measured the mass of ash produced to be 925 grams, the mass of carbon dioxide produced to be 15.14 kg, and the mass of water produced to be 3.12 kg. How much oxygen was used up by the wood while it burned?

Answer 1

Approximately 964.48 kg of oxygen was used up by the wood while it burned.

Step-by-step explanation:

The chemist burned 15.4 kg of wood in a fireplace and measured the mass of the substances produced. To find out how much oxygen was used up by the wood while it burned, we need to calculate the mass of oxygen in the products. We can calculate the mass of carbon dioxide produced by subtracting the mass of ash and water from the total mass of products produced. The mass of oxygen used can be calculated by multiplying the mass of carbon dioxide produced by the molar ratio of oxygen to carbon dioxide.