Determine the longest wavelength of light required to remove an electron from a sample of potassium metal, if the binding energy for an electron in K is 1.76 103 kJ/mol. 68,901 results College Chem.
1 Blot the stain gently first to remove excess grease. 2  Use a tissue, paper towel, or cotton swab to press gently against the stain on both sides of the fabric. 3  Do not rub into the stain, just soak up the excess oil.op Tip. If you have oil stains on your shirt, donât worry â detergents like Surf excel Liquid Detergent and dishwashing liquids like Vim Liquid Lemon make it easy to remove oil and grease stains from cooking! Oil stains can easily happen, and (fortunately) theyâre just as easy to shift.
Steps to Remove the Rust Stain: 1  Read the label for any precautions prior to use. 2  Apply a small amount of rust remover to the stain. 3  Follow any instructions provided on the packaging. 4  Allow it to soak if necessary. 5  Rinse with clean water. 6  Launder the garment as usual.ere is a method that can be used on old and new stains. 1  Moisten a soft cloth or cotton ball with white vinegar. 2  Blot the stained area to moisten it completely. 3  Cover the stain with a thin layer of salt.