The first step is to determine the molar concentration of NaOH. To do so, we use the molar mass of NaOH (MW = 40.0 grams per mole). Calculating for...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question ...
Assuming your 20% is weight on weight, just add 80 grams of water (80 mL at 20 degrees Celsius) to 20 grams of NaOH.You'll have [(20g NaOH) /(20g NaOH+80g water) ]*100 ==> 20g NaOH every 100g of solution. Logged darko Regular Member Posts: 46 Mole Snacks: +0/-5 Re:...