The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 gg of luminol into a total volume of 75.0 mLmL of H2OH2O. What is the molarity of the stock solution of luminol? Express your answer with the appropriate units.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.