What is the total mass of KNO3 that must be dissolved in 50 g of water at 60 degree C to make a saturated solution?
To determine the total mass of KNO3 needed to make a saturated solution, we can use the solubility data for KNO3 at 60 degrees Celsius.
1. Look up the solubility of KNO3 at 60 degrees Celsius. The solubility of KNO3 at 60 degrees Celsius is approximately 110 g per 100 g of water.
2. Calculate the amount of KNO3 needed to make a saturated solution using the solubility data. Since 110 g of KNO3 is soluble in 100 g of water, we can set up a proportion to find the amount of KNO3 needed for 50 g of water:
(110 g KNO3) / (100 g water) = (x g KNO3) / (50 g water)
Solving for x, we have:
x = (110 g KNO3 * 50 g water) / 100 g water
x = 55 g KNO3
Therefore, to make a saturated solution, a total mass of 55 grams of KNO3 must be dissolved in 50 grams of water at 60 degrees Celsius.
To find the total mass of KNO3 needed to make a saturated solution, we need to consider the solubility of KNO3 at the given temperature.
1. Look up the solubility of KNO3 at 60°C: Start by searching for the solubility table or chart for KNO3 at different temperatures. This information can often be found in chemistry textbooks, online databases, or reference books. Let's assume that the solubility of KNO3 at 60°C is 100 g/100 g of water.
2. Calculate the mass of solute dissolved in a specific amount of solvent: Since we are given 50 g of water, we need to determine how much KNO3 can dissolve in this amount of water.
- Calculate the mass of KNO3 that can dissolve in 50 g of water:
Using the solubility value of 100 g/100 g, we set up a proportion:
(100 g KNO3 / 100 g water) = (x g KNO3 / 50 g water)
Cross-multiply and solve for x:
x = (100 g KNO3 / 100 g water) * 50 g water
x = 50 g KNO3
Therefore, 50 g of KNO3 can dissolve in 50 g of water at 60°C.
3. Determine the total mass of KNO3 needed for a saturated solution:
Since a saturated solution is one in which no more solute can dissolve, the mass of KNO3 needed is equal to the amount that can dissolve in the given amount of water at the temperature. In this case, we found that 50 g of KNO3 can dissolve in 50 g of water at 60°C.
Thus, the total mass of KNO3 that must be dissolved in 50 g of water at 60°C to make a saturated solution is 50 grams.
I'm sorry but I just don't have all of the solubility tables memorized. There must be millions.
You must have a table or a graph and you can read it from that.