Question

Determine the formula weight for magnesium perchlorate.

a) 123.8 amu
b) 223.2 amu
c) 155.8 amu
d) 75.76 amu
e) 247.5 amu

Answer 1

The formula weight for magnesium perchlorate is 247.5 amu.

Step-by-step explanation:

The formula weight for magnesium perchlorate can be determined by adding up the atomic masses of each element in the compound. The formula for magnesium perchlorate is Mg(ClO4)2, which consists of one magnesium atom, two perchlorate ions, and a total of 10 oxygen atoms. Adding the atomic masses of each element gives us:

Mg: 24.31 amu
Cl: 35.45 amu
O: 16.00 amu

Therefore, the formula weight for magnesium perchlorate is calculated as:

(1 * 24.31 amu) + (2 * (35.45 amu + 4 * 16.00 amu)) = 247.5 amu