a compound x has a solubility of 79g/100 g h20. when 24 g of x are added to 68 g of water the resulting mixture is homogeneous or heterogenous

Answer 1

I usually work this type by calculating how much water is required to dissolve 24 g. We know it takes 100 g H2O to dissolve 79 g of x so
100 * (24/79) = ?? is the amount of water required to dissolve 24 g. Then compare that number with the amount of water you have (68g). If you have enough water to dissolve the salt then you have a homogeneous solution. If you have less water than needed to dissolve the salt you will have a saturated solution and two phases which is a heterogeneous mixture.