Water is a polar solvent and hexane is a nonpolar solvent......?

Question

which of the following correctly describes the solubility of the solute? 1) mineral oil, soluble in water 2)NaHCO3,soluble in water 3)Cacl2, soluble in hexane 4)CCl4, soluble in water 5) octane, soluble in water.... Arrrrrgh, which is it... help please!!!!!!!!!!!!!!!!!

Answer 1

3)Cacl2, soluble in hexane

REASON:

since non-polar substances are soluble in non-polar substances, Calcium chloride is a non-polar chemical and hexane is a non-polar substance so they CaCl2 is soluble in hexane.

hope this helps^_^

Answer 2

2) Sodium bicarbonate in water.

    NaHCO3 is a polar, ionic compound. Water has slight polar qualities.

    Sprinkle some baking soda in water and see it bubble up and dissolve.

  

Note: choice #3 is incorrect because CaCl2 is ionic, polar.

Next time ask a question like this in YA "Chemistry" section.