Calculate the molar solubility of Cd(OH)2, .

2/26/18 Hair ● Hairs make good forensic evidence because they can survive for many years, carry biological information, and are easy and cost­effective to examine ● Hair is encountered as physical evidence in a wide variety of crimes ● Not yet possible to individualize a human hair to a single head or body through its morphology ­ still has value as physical evidence ● DNA can be extracted from hairs (can individualize a human hair to single person) Hairs as Evidence ● Common physical evidence ● Remember Locard’s Exchange Principle ­ if two object come into contact with one another, physical material is exchanged ○ Hairs can adhere strongly to surfaces, thus they persist ● Standard / reference samples are neede