Kimberly Worst of Butler, a student at Westminster College, helped to develop a "Mole Balance," a potentially patentable product, under the supervision of Helen Boylan, associate professor of chemistry.The "Mole Balance" is an electronic interface between a computer and balance that can produce a digital readout in moles rather than grams, along with several other secondary applications.The mole is a universally standard unit which is a fundamental component of chemical calculations.The educational tool can be worked into chemistry curricula to enhance learning and understanding of difficult or abstract concepts.The students designed a working prototype instrument and completed the paperwork for a provisional utility patent. Westminster's Drinko Center for Excellence in Teaching and Learning provided a grant to cover the costs associated with the provisional patent application fees.The students presented their research at a poster session for Westminster's Chemistry Department in December.Worst is the daughter of Paul and Maria Worst and is a graduate of Butler High School.