Asked by Mary

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?
Answered by DrBob222
...........X + Y = XY
.........13.5g.....81.1g
So 13.5 + ? = 81.1
Solve for ?
Answered by kkkkk
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%
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