Determine the mass of the lead in grams if the water level in a graduated cylinder initially at 224 mL rises to 274 mL after a piece of Pb is submerged?
A sample of36.0-mg an organic compound (MW = 84g/mol) is mixed in water of 10.0-mL . solution is extracted with five mili litres of hexane. it now contains 12.0 milligrams of the organic compound. Determine the partition coefficient (Kp hexane/water) for the compound?