in trial one the mass of silver oxide is .5g. The mass of silver metal product is .431 grams.
In trial two the silver oxide=.498 and silver metal=.388.
Use the conservation of mass to calculate the mass of oxygen that combined with the silver
To calculate the mass of oxygen that combined with the silver, we can use the conservation of mass principle. According to this principle, the total mass of the reactants should be equal to the total mass of the products in a chemical reaction.
Let's start with trial one:
Mass of silver oxide = 0.5 g
Mass of silver metal = 0.431 g
In the reaction, silver oxide (Ag2O) decomposes to form silver (Ag) and oxygen (O2).
To find the mass of oxygen, we subtract the mass of silver from the mass of silver oxide:
Mass of oxygen = Mass of silver oxide - Mass of silver
Mass of oxygen = 0.5 g - 0.431 g
Mass of oxygen = 0.069 g
So, in trial one, the mass of oxygen that combined with the silver is 0.069 grams.
Now let's move on to trial two:
Mass of silver oxide = 0.498 g
Mass of silver metal = 0.388 g
Using the same approach, we calculate the mass of oxygen:
Mass of oxygen = Mass of silver oxide - Mass of silver
Mass of oxygen = 0.498 g - 0.388 g
Mass of oxygen = 0.11 g
Therefore, in trial two, the mass of oxygen that combined with the silver is 0.11 grams.