What is the mass percentage of each element in the compound...?

+1 vote

What is the mass percentage of each element in the compound \rm Al_2O_3?

asked Feb 7, 2012 in General Chemistry by Kist Nus ~Expert~ (641 points)
    

1 Answer

+1 vote
Steps:

1. (27x2)+(16x3) = 102 which is the total mass.

To get each percentage,

Aluminum = (27x2)/102

Oxygen = (16x3)/102

ANSWER: 52.9%,47%
answered Feb 7, 2012 by Kist Nus ~Expert~ (641 points)
This does not add up to 102

Related questions

+3 votes
1 answer 548 views
+3 votes
1 answer 5,140 views
+4 votes
1 answer 419 views
419 views asked Oct 13, 2011 in General Chemistry by Joey33 ~Expert~ (1,216 points)
+3 votes
1 answer 3,756 views



...