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.
1 Remove, rinse with warm water, and wring or squeeze out the excess water. 2  If the stains persist, dampen a sponge with rubbing alcohol (also known as surgical spirit) and dab at them until they are gone. 3  Make sure to spot-test for colour-fastness first, as rubbing alcohol can remove colours from some fabrics.