When 5 grams of wood burns completely and 15 grams of oxygen, 10 grams of water vapor and some carbon dioxide are given off.
(How many grams of carbon dioxide would be produced in this example?)
https://www.jiskha.com/display.cgi?id=1506782594
To determine the amount of carbon dioxide produced in this example, you need to consider the law of conservation of mass. This principle states that matter is neither created nor destroyed in a chemical reaction, so the total mass of the reactants must be equal to the total mass of the products.
In this case, we know that 5 grams of wood and 15 grams of oxygen are reacting to produce 10 grams of water vapor and some carbon dioxide.
First, let's find the difference in mass before and after the reaction:
Total mass of reactants = 5 grams (wood) + 15 grams (oxygen) = 20 grams
Total mass of products = 10 grams (water vapor) + mass of carbon dioxide
Since the total mass before and after the reaction must be the same:
20 grams (reactants) = 10 grams (water vapor) + mass of carbon dioxide
To find the mass of carbon dioxide, subtract the mass of water vapor from the total mass:
Mass of carbon dioxide = Total mass of reactants - Total mass of products
= 20 grams - 10 grams
= 10 grams
Therefore, in this example, 10 grams of carbon dioxide would be produced.