3 SHOW ALL WORK STEP BY STEP WITHOUT SHORT CUTS
1) make a solution of 0.25% n-propanol (use 25 ml volumetric
flask)
2) make a water solution of methanol and isopropanol of 0.2%
make it in the same container and in separated container.
3) make a 50ml stock solution of 0.50 wt% ethanol .
4) make five solution ranging from of ethanol 0.0 %, 0.05%,
0.10%, 0.20,% 0.30% 0.40% 0.50% wt% in water. (Used 25ml volumetric
flasks)