Molecular Formulas from Exact Molecular Weights
{"Image DocumentName": "Molecular Formulas from Exact Molecular Weights", "Image ImageDescription": "Requires identification of molecular ion peak. Exact mass needs to be determined. High resolution instruments. detect mass differences of a few thousands of amu. Purine, C5H4N4 (m = ) Benzamidine, C7H8N2 (m = ) Ethyltolune, C9H12 (m = ) Acetophenone, C8H8O (m = ) Molecular ion peak is \u00b1 \uf0e0 only C7H8N2 is possible formula. Precision of a few parts per million is routinely possible.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}