See also Entering Formulas.
The following are examples of formulas that can be entered on the formula line:
Formula | Description |
C6H6 | Benzene. A basic formula. |
nacl | Sodium Chloride. Program will capitalize nacl to NaCl for you. |
FeCl3-6H2O | Iron Chloride with 6 hydrates attached (shows use of dashes for hydrates) |
4FeCl3-6H2O | Four units of Iron Chloride for every six hydrates |
Al(OH)3 | Aluminum and 3 hydroxide groups (shows use of parentheses) |
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Carbon with three C(CH3)3 groups attached (shows use of embedded parentheses) |
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When the "Treat Brackets as Parentheses" option is on, brackets and parentheses can be used interchangably to more easily represent subgroups. |
Et2O | Diethyl Oxide (shows use of an abbreviation) |
^13C6H6 | Carbon-13 labeled benzene (shows use of isotopes) |
^78.918Br | Bromine 79 with a specific isotopic mass |
[.2Na]Cl | Only one fifth of a sodium atom exists for each chlorine atom (shows use of brackets) |
Na.2Cl | Same as previous example, but without brackets. |
C6H6-[xH2O] | Benzene with an unknown amount of water, denoted by the x. Use with percent solver calculations. |
HGlyLeuTyrOH | A peptide containing three residues (amino acids). Note that an H must added to the beginning and an OH to the end to obtain the correct molecular weight. |
C6H5Cl>HCl | Example of Element Subtraction: One atom of H and one atom of Cl are removed from C6H5Cl to give C6H4. |
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