To prepare 500 mL of 0.5 mol copper sulfate solution,62.5 g of gallstone is required. To prepare 500 mL of 0.5 mol copper sulfate solution,62.5 g ofiliary alum is required.

To prepare 500 mL of 0.5 mol copper sulfate solution,62.5 g of gallstone is required. To prepare 500 mL of 0.5 mol copper sulfate solution,62.5 g ofiliary alum is required.

You are wrong. It should be: Prepare 500mL 0.5 mol/L copper sulfate solution, need 62.5g gallstone.
Analysis: n (CuSO4)=n (CuSO4.5H2O)=CV=0.5*0.5=0.25mol
M (CuSO4.5H2O)=nm=250*0.25=62.5(g)

You are wrong. It should be: Prepare 500mL 0.5 mol/L copper sulfate solution, need 62.5 grams of gallstone.
Resolution: n (CuSO4)=n (CuSO4.5H2O)=CV=0.5*0.5=0.25mol
M (CuSO4.5H2O)=nm=250*0.25=62.5(g)

To prepare 0.1 mol/l copper sulfate solution is prepared with cholate alum, the cholate alum is heated to remove the crystal water, and then 16 g of anhydrous copper sulfate is dissolved in 1 l of water To prepare 0.1 mol/l of copper sulfate solution with bile alum, heat the bile alum to remove the crystal water, and then dissolve 16 g of anhydrous copper sulfate in 1 liter of water

Yes.
Bile alum can not be directly weighed here because it will lose some water in the air. Therefore, it is not pure copper sulfate pentahydrate. Bile alum is weighed to calculate the quantity of its substance.
Heat the bile alum to make it lose water into anhydrous copper sulfate, and heat it to constant weight (i.e., weigh after heating, reheat and weigh again until the mass is no longer changed, which means that it has been completely converted into anhydrous copper sulfate).

Yes.
Bile alum can not be directly weighed here because it will lose some water in the air. Therefore, it is not pure copper sulfate pentahydrate. Bile alum is weighed to calculate the quantity of its substance.
Heat the bile alum to make it lose water to anhydrous copper sulfate, and heat it to constant weight (i.e., weigh after heating, reheat and weigh again until the mass is no longer changed, which means that it has been completely converted to anhydrous copper sulfate).

Yes.
Bile alum can not be directly weighed here because it will lose some water in the air. Therefore, it is not pure copper sulfate pentahydrate. Bile alum is weighed to calculate the quantity of its substance.
Heat the gallstone to make it lose water into anhydrous copper sulfate, and heat it to constant weight (i.e., weigh after heating, reheat and weigh again until the mass is no longer changed, which means that it has been completely converted into anhydrous copper sulfate).