What minimum frequency of light is required to ionize potassium?The energy required to ionize potassium is 419kJ/mol? Chemistry The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34 x 10-19 J.
This video shows how to remove black mastic or carpet glue of concrete floor using FranMar's Bean-e-doo mastic remover. This is an easy and safe way to remove black mastic without toxic fumes. for more information visit www.sealgreen.com.1  Howto & Style. 2  Standard YouTube License.his video shows how to remove black mastic or carpet glue of concrete floor using FranMar's Bean-e-doo mastic remover. This is an easy and safe way to remove black mastic without toxic fumes. for more information visit www.sealgreen.com. 1  Howto & Style. 2  Standard YouTube License.
Remove soot with Trisodium Phosphate (TSP) solution. A popular cleaner for smoke-damaged walls is Trisodium Phosphate (TSP). While this is a more powerful cleaning solution, it still requires a great deal of time and effort to clean the damage to your walls and/or ceiling. If any fabric coverings can be removed from the furniture, do so. 2  It is easiest to clean the smoke smell away in a washing machine. . 3  You can also add 1 cup of white vinegar to the washing water in order to increase the power of odor removal.