even when the paint being disturbed has a lead concentration less than the EPA limit of 0.5%. Illustration 1 is a graph of typical airborne lead levels for common work activities when the paint film that is being damaged contains approximately 0.3% leadâa concentration low enough that the material is exempted from RRP requirements.
Reactance is mathematically symbolized by the letter âXâ and is measured in the unit of ohms (Ï). Impedance is a comprehensive expression of any and all forms of opposition to electron flow, including both resistance and reactance. It is present in all circuits, and in all components.
Best Answer: Molality is used in determining the change in freezing point and boiling point. The particles of solute interfere with the process of freezing and boiling making the boiling point lower and the boiling point higher. The more particles of solute per particle of solvent, the more interference there is. Molality measures the moles solute per kilogram of water. Molarity measures the moles of solute liter of solution. Molality measures # of atoms of solute vs number of atoms of solvent. 1 kg of water = 1000 g Ã· 18 g/mole * 6.02 * 10^23 atoms/mole = 3.44 * 10^25 molecules of water.