# Just a quick question

1. Sep 8, 2010

### Altami

1. The problem statement, all variables and given/known data
A compound MF6 (the 6 being a subscript) contains 32.38% F by mass what is identity of M?

2. Relevant equations
What is identity of M?

3. The attempt at a solution

I really have no idea how to start...sorry. If someone can give me tips, on how to do it, that way I can learn. Thanks!

2. Sep 8, 2010

### DaveC426913

What have you learned in Chem so far?

Do you know what M, F and MF6 are?

Here's a push in the right direction.

I have one large fruit of unknown type and unknown mass, and six apples in my (massless) fruit basket.
I know how much the apples mass individually, and I've been told that, together, they comprise 32.38% of the mass of my entire fruit basket.
The remaining % of the fruit basket is going to be the mass of the mystery fruit.

Last edited: Sep 8, 2010
3. Sep 8, 2010

### Altami

Wait I got 238.04 which would be Uranium right M=Uranium. If you can just verify this.

Last edited: Sep 8, 2010
4. Sep 8, 2010