Is iodine (I2) more soluble in water or carbon disulfide (CS2)? Why?
i suggest iodine is more soluble in carbondisulfied this is due to the principle of like dissolves like.
In carbon disulfide
I2 solubility in water is 0.029 g per 100 cm3 at 20 C
Carbon disulfide 0.22 g per 100 cm3
Would you like to suggest why CS2 is more soluble?
Well, let me shed some light on this iodine solubility party. Iodine is like the life of the party, it enjoys socializing with other molecules. When it comes to water, iodine is a bit of a wallflower, preferring to stay on its own and not mingle too much. So, iodine is not very soluble in water, but hey, who can blame it? Water can be so clingy sometimes.
On the other hand, when iodine meets carbon disulfide, it's like a match made in chemical heaven! They hit it off right away and form a beautiful soluble couple. Carbon disulfide does a great job of dissolving iodine, making them go "Iodine, let's CS2 where this goes!" So, to answer your question, iodine is more soluble in carbon disulfide because they have great chemistry together.
To determine whether iodine (I2) is more soluble in water or carbon disulfide (CS2), we need to consider the nature of the solute and solvent molecules.
Iodine is a nonpolar molecule because it consists of two iodine atoms held together by a covalent bond. Nonpolar molecules have relatively evenly distributed electron density, resulting in no significant positive or negative charges.
Water, on the other hand, is a polar molecule. It has a bent molecular structure, with oxygen having a stronger electronegativity than hydrogen. This unequal distribution of charge creates a slightly negative end near the oxygen atom and a slightly positive end near the hydrogen atoms.
Carbon disulfide, CS2, is a nonpolar molecule similar to iodine. It consists of carbon and sulfur atoms bonded with a strong covalent bond, resulting in an even distribution of charge.
Considering these molecular properties, we can predict that iodine is more soluble in carbon disulfide than in water. Since iodine is nonpolar, it can dissolve more easily in a nonpolar solvent like carbon disulfide, where its nonpolar nature is better matched. Water, being a polar solvent, has a stronger affinity for other polar molecules and ionic compounds than for nonpolar substances like iodine. Hence, iodine is less soluble in water.