What is the amount of water needed to obtain a saturated solution using 27g of barium nitrate? What mass of water is present

To determine the amount of water needed to obtain a saturated solution using 27g of barium nitrate, we need to know the solubility of barium nitrate in water. The solubility of a substance is the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature.

In this case, the solubility of barium nitrate is not provided. Therefore, we cannot determine the exact amount of water needed to obtain a saturated solution with 27g of barium nitrate without that information.

However, if we assume that barium nitrate is completely soluble in water, we can calculate the mass of water required. This assumption is reasonable for many common substances like barium nitrate.

To calculate the mass of water, we need to subtract the mass of barium nitrate (27g) from the total mass of the saturated solution. The mass of the solution is the sum of the masses of the solute (barium nitrate) and the solvent (water).

Let's assume that the total mass of the saturated solution is 100g. To obtain the mass of water, we subtract the mass of barium nitrate from the total mass:

Mass of water = Total mass of solution - Mass of barium nitrate
Mass of water = 100g - 27g
Mass of water = 73g

Therefore, if the total mass of the saturated solution is 100g, then the mass of water present would be 73g. It's essential to note that this calculation is only valid if we assume that barium nitrate is completely soluble in water and the total mass of the solution is 100g.