Science, Tech, Math › Science Common Base Solutions Prepare Solutions From a Concentrated Solute Share Flipboard Email Print Huntstock/Getty Images Science Chemistry Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate by Anne Marie Helmenstine, Ph.D. Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Updated July 25, 2018 Prepare solutions of common bases using this handy reference table which lists the amount of solute (concentrated base solution) that is used to make 1 L of base solution. Stir the base into a large volume of water and then dilute the solution to make one liter. Use care when adding sodium hydroxide to water, since this is an exothermic reaction that generates considerable heat. Be sure to use borosilicate glass and consider immersing the container in a bucket of ice to keep the heat down. Use solid sodium hydroxide and potassium hydroxide to prepare solutions of those bases. Use concentrated (14.8 M) ammonium hydroxide for those preparations. Base Solution Peparations Name / Formula / F.W. Concentration Amount/Liter Ammonium Hydroxide 6 M 405 mL NH4OH 3 M 203 F.W. 35.05 1 M 68 0.5 M 34 0.1 M 6.8 Potassium Hydroxide 6 M 337 g KOH 3 M 168 F.W. 56.11 1 M 56 0.5 M 28 0.1 M 5.6 Sodium Hydroxide 6 M 240 g NaOH 3 M 120 F.W. 40.00 1 M 40 0.5 M 20 0.1 M 4.0 Continue Reading How to Prepare a Sodium Hydroxide Solution How to Make a Phosphate Buffer Solution The Difference Between Molality and Molarity: Is It m or M? Know the Names and Structures of 10 Common Bases How to Prepare Common Acid Solutions How To Make and Use Chemical Piranha Solution (Safely) Easy Method to Prepare a Chemical Solution Here's What Concentration Means in Chemistry Where to Buy Sodium Hydroxide or Lye What Are the Strong Bases? How to Calculate Concentration of a Chemical Solution Calculate How to Make a Dilution From a Stock Solution Get Facts About Ammonium Hydroxide Units of Concentration: Osmolarity and Osmolality in Chemistry How to Calculate the Concentration of a Chemical Solution What Does It Mean to Calculate the Molarity of a Solution?