Consumption and Real Estate
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 20. 0 g of?
luminol into a total volume of 75. 0 mL of . H2O.
What is the molarity of the stock solution of luminol?
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luminol has a molecular weight of 177.16 g/mol
20 g = 20 / 177.16 moles =.113 moles
molarity = number of moles / Volume in liter
= .113 / .075 = 1.5 molar