A 13.5 g sample of X reacts with a sample of Y to form 81.1 g of XY. What is the mass of Y that reacted?
...........X + Y = XY
.........13.5g.....81.1g
So 13.5 + ? = 81.1
Solve for ?
X+Y= XY
13.5 g = X
= 13.5 %
100%-13.5%= 86.5% Y
= 86.6g Y
Mass of Y that reacted= 86.6%
To find the mass of Y that reacted, we need to determine the mass of Y in the XY compound and subtract the mass of X.
Here's how to do it step by step:
1. Determine the mass of X:
Given: Mass of X = 13.5 g
2. Determine the total mass of XY:
Given: Mass of XY = 81.1 g
3. Subtract the mass of X from the total mass of XY to find the mass of Y:
Mass of Y = Mass of XY - Mass of X
Now, let's calculate the mass of Y:
Mass of Y = 81.1 g - 13.5 g
Mass of Y = 67.6 g
Therefore, the mass of Y that reacted is 67.6 g.