Question

A compound of iodine (atomic mass = 127) and oxygen contains 40 g iodine and 17.6 g oxygen. The formula of iodine oxide is

Answer 1

Formula for iodine oxide is IO bz iodine have a charge of I^-2 and O have charge of O^+2

Answer 2

Answer:

The formula of iodine oxide is $I_2O_7$.

Explanation:

Mass of iodine in compound = 40 g

Mass of oxygen in compound= 17.6 g

Molar mass of the compound = 127 g/mol

Moles of iodine = $\frac{40 g}{127 g/mol}=0.3150 mol$

Moles of oxygen = $\frac{17.6 g}{16 g/mol}=1.1 mol$

For iodine :

$=\frac{0.3150 mol}{0.3150 mol}=1$

for oxygen:

$=\frac{1.1 mol}{0.3150 mol}=3.5$

The empirical formula is : $I_1O_{3.5}=I_2O_7$