FAN AND MEDAL
You find that the unknown powder contains the illegal drug cocaine. If someone where to ask you to determine the purity of the substance, what would they mean? Why is purity important in crime investigations?

Question

FAN AND MEDAL 
You find that the unknown powder contains the illegal drug cocaine. If someone where to ask you to determine the purity of the substance, what would they mean? Why is purity important in crime investigations?

aleah54 · Answer

@sweetburger @SnuggieLad @some.random.cool.kid @simplymarie_x @SkyVoltage @sam141101

wilsondanielle · Answer

Purity refers to the concentration/percentage/fraction of a target molecule/substance in an overall mixture. For example, if a solution is 50% water and 50% ethanol, it's 50% pure from either perspective. Can you think of why that might be important in crime investigations?