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.
Here are methods to remove carpet glue from concrete: Step 1 â Scraping the Carpet Glue. Remove as much of the carpet glue as possible by scraping it using a razor blade scraper. The scraper can easily remove big chunks of the glue, which helps in getting the job done easily afterwards.Step 2 â Use Boiling Water. Boiling water will soften up hard-to-remove glue.Pour the boiling water over the carpet glue and allow it to sit there for about 3 to 5 minutes. Do not allow the boiling water to sit for too long or it will cool off. As the heat softens the glue, scrape it off using the razor blade scraper.tep 2 â Use Boiling Water. Boiling water will soften up hard-to-remove glue. Pour the boiling water over the carpet glue and allow it to sit there for about 3 to 5 minutes. Do not allow the boiling water to sit for too long or it will cool off.