what mass of ammonium chloride can be added to 100g of water at 20 degrees C before the solution becomes saturated
need help please???
Answered above by PC.
To determine the mass of ammonium chloride that can be added to 100g of water before the solution becomes saturated at 20 degrees Celsius, we need to know the solubility of ammonium chloride at that temperature.
The solubility of a substance refers to the maximum amount of solute that can be dissolved in a given amount of solvent at a specific temperature. In the case of ammonium chloride and water, the solubility of ammonium chloride increases with an increase in temperature.
To find the solubility of ammonium chloride at 20 degrees Celsius, we can consult a solubility chart or look up the data. In this case, the solubility of ammonium chloride in water at 20 degrees Celsius is approximately 37.2 grams per 100 grams of water.
If the solution is already at 100g of water and we want to add ammonium chloride until it becomes saturated, we need to subtract the initial mass of water from the total mass of the saturated solution.
The maximum amount of ammonium chloride that can be added can be calculated as follows:
Mass of ammonium chloride = (solubility of ammonium chloride at 20 degrees Celsius - mass of water)
Mass of ammonium chloride = (37.2 g/100g - 100g) = 37.2 g - 100g = -62.8 grams
Therefore, for 100g of water at 20 degrees Celsius, we cannot add any ammonium chloride since the solubility of ammonium chloride is less than the mass of water.