Question #1d3d1
1 Answer
Jan 26, 2018
x = 7 Solution follows
Explanation:
From the formula, we can see that the number of oxygen atoms would be 4 + x. The total mass of this oxygen would then be
In the same way, the mass of the entire compound can be expressed in terms of x, as
The fraction of the mass that is oxygen is therefore
and because we know the oxygen represents 71.4% of the mass, we can write
Now, solve for x: