The strength of the indicator solution can be adjusted depending on your strength needs. I made a 0.05%wt solution because that is all I had. In general, a lot of indicator solutions are actually 0.5%wt (0.5g used). This is just a quick video on how to make a phenolphthalein indicator solution. A few drops of this solution can be used as an indicator in acid base titrations or other pH dependent applications. Nile talks about lab safety: https://youtu.be/ftACSEJ6DZA -------------------------