Chemical calculator

G - Physics – 06 – F

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G06F 15/02 (2006.01) G06F 15/20 (1990.01) G06F 15/403 (1990.01)

Patent

CA 2090030

2090030 9203775 PCTABS00011 A chemical calculator providing rapid and convenient means to retrieve information and perform calculations of chemical elements and chemical formulas obtained by direct entry from a periodic table keypad (13). Chemical element data (e.g. atomic number and mass, etc.) or calculated data (e.g. bond distance) of element pairs are displayed on an LCD or CRT screen (5) when element keys (6) are selected. Chemical formulas can be written when element (6), numerical (9) or formulaic (10) keys are pressed. The ''Enter'' command results in the display of the chemical formula's condensed formula, formula weight and percentage composition. Other function modes permit additional transformations, reaction yields and limiting reactants and empirical formula determinations.

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