I need help making solutions. Especially for 2 and 3.

1.prepare the water solution of internal standard at about 0.2-0.3% n-propanol.

I think that is 0.2 g in 100 mL of water.

2. Prepare a water solution of methanol and isopropanol at about 0.2 %( belongs in one container)

3. Prepare standard solutions of ethanol in the range about 0.05- 0.50 wt% in water. This is a standard curve.