What is the mass percentage of iodine (i2) in a solution containing 4.0×10−2 mol i2 in 140 g of ccl4?

The mass percent of iodine in the solution is 6.77 %

Explanation:

To calculate the number of moles, we use the equation:

We are given:

Moles of iodine gas =

Molar mass of iodine gas = 254 g/mol

Putting values in above equation, we get:

To calculate the percentage composition of a substance in a solution, we use the equation:

We are given:

Mass of solute (iodine gas) = 10.16 g

Mass of solvent (carbon tetrachloride) = 140 g

Mass of solution = (140 + 10.16) g = 150.16 g

Putting values in above equation, we get:

Hence, the mass percent of iodine in the solution is 6.77 %

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a