@ 20 Celsius - 22g CuSO4 / 100g H2O

@ 40 Celsius- 42g CuSO4 / 100g H2O

Using this, answer whether these are saturated or unsaturated

@ 40 Celsius is 5g CuSO4 / 10g H2O

@ 40 Celsius is 99g CuSO4 / 250g H2)

I was told that the first one is unsaturated and the second one is saturated but...I come up the opposite of what I was told....Help please!

To determine whether a solution is saturated or unsaturated, we need to compare the amount of solute (CuSO4) dissolved in a given amount of solvent (H2O) with the maximum amount that can be dissolved at a specific temperature. The maximum amount of solute that can be dissolved, also known as the solubility, depends on the temperature.

Let's analyze the two situations:

1. @ 20 Celsius - 22g CuSO4 / 100g H2O
2. @ 40 Celsius - 42g CuSO4 / 100g H2O

For the first case (@ 20 Celsius), the solubility is given as 22g CuSO4 per 100g H2O. If we have less than 22g of CuSO4 dissolved in 100g of water, the solution is unsaturated. In this case, there are 22g of CuSO4, which is equal to the solubility. Therefore, the solution would be saturated, not unsaturated.

For the second case (@ 40 Celsius), the solubility is given as 42g CuSO4 per 100g H2O. If we have less than 42g of CuSO4 dissolved in 100g of water, the solution is unsaturated. In this case, there are only 5g of CuSO4 in 10g of water. Since 5g is less than 42g, the solution is indeed unsaturated.

Therefore, you were correct in your analysis. The first solution is saturated and the second solution is unsaturated.

Now, let's analyze the additional information you provided:

1. @ 40 Celsius - 5g CuSO4 / 10g H2O
2. @ 40 Celsius - 99g CuSO4 / 250g H2O

For the first case, the solubility is given as 42g CuSO4 per 100g H2O. If we have less than 42g of CuSO4 dissolved in 100g of water, the solution is unsaturated. In this case, there are only 5g of CuSO4 dissolved in 10g of water, which is indeed less than the solubility of 42g. Therefore, the solution is unsaturated.

For the second case, the solubility is still 42g CuSO4 per 100g H2O, which means the maximum amount that can be dissolved at 40 Celsius is 42g in 100g of water. In this case, we have 99g CuSO4 dissolved in 250g of water. To compare this with the solubility, let's convert these amounts to the same unit: grams per 100 grams of water. We can calculate this as follows:

(99g CuSO4 / 250g H2O) * (100g H2O / 250g H2O) = 39.6g CuSO4 per 100g H2O

Since 39.6g is less than the solubility of 42g, the solution is unsaturated.

In conclusion, based on the additional information you provided, both cases are actually unsaturated, contrary to what you were told.