Question

One type of artificial diamond (commonly called YAG for yttrium aluminium garnet) can be represented by the formula `Y_(3)Al_(5)O_(12)`
`(a)` Calculate the weight percentage composition of this compound.
`(b)` What is the weight of yttrium present in a `200 -` carat `YAG` if `1` carat `-200mg` ? `(Y=89),Al=27)`

Answer 1

Correct Answer - `(a) Y=44.95%,Al=22.73%,O=32.32%" "(b)17.98g`
`Y_(3)A_(5)O_(12)`
`200xx200xx10^(-3)`
`(a)y=44.95%, " "Al=22.73%," "O=32.32%`
`(b) 17.98 gm`