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 Coffee Stains From Clothing. 1  For fresh coffee stains, first try cold water -- this might be all that's needed. 2  Rub liquid laundry detergent and a little cold water into the coffee stain. 3  If the stain is still there, try mixing some powdered laundry detergent with equal parts white vinegar and water and turn it into a paste.