the number of grams of CuSo4 times 5 H2O that will dissolve in 100g of H20 at 100 degrees

To determine the number of grams of CuSO4 · 5H2O that will dissolve in 100g of H2O at 100 degrees, you will need to utilize the solubility data for the compound.

Step 1: Find the solubility of CuSO4 · 5H2O in water at 100 degrees.

To do this, you can search for a reliable source that provides the solubility information. One such source is a reputable chemistry handbook or database. Let's assume that the solubility of CuSO4 · 5H2O at 100 degrees is 50g/100g of water.

Step 2: Calculate the amount of CuSO4 · 5H2O that will dissolve in 100g of water.

Using the solubility data from Step 1:

Amount of CuSO4 · 5H2O = (solubility of CuSO4 · 5H2O) × (mass of water)

Amount of CuSO4 · 5H2O = 50g/100g × 100g

Amount of CuSO4 · 5H2O = 50g

Therefore, 50 grams of CuSO4 · 5H2O will dissolve in 100g of water at 100 degrees.