Version 3.1 of Molecular Weight Calculator for Windows now available. New Features: New Windows Interface Modify elemental values (element weight and uncertainty) Edit and save abbreviations and elemental values while program is running Save options as defaults Copy and paste information to/from other Windows programs Unlimited formula length Ability to print results Ability to change the font used to display formulas Mole/Mass Converter Formula Finder Full hypertext help Why is it better than other programs available? First of all it's free, yet fully functional. I feel it is very powerful, more functional and more user friendly than other molecular weight programs I've found over the net. I like it so much that I'm making it available for others so that they can use it in their research and studies. Plus, the program is fully Windows 95 compatible (beside Win 3.x). The Dos version is also still available. AVAILABILITY ------------------------------------------------------------------------------ Windows Version (MWT Win v3.1) The program is available via the web at http://plains.uwyo.edu/~monroem/ or at http://www.coast.net/SimTel/win3/chem.html and http://www.cdrom.com/simtel.net/win3/chem.html under the file mwt3_1.zip The program is also available via Anonymous FTP at ftp.coast.net under the SimTel/win3/chem directory in the mwt3_1.zip file, at ftp.simtel.net under pub/simtelnet/win3/chem in the mwt3_1.zip file, and ftp.ccl.net (around August 1, 1996) under the pub/chemistry/software/MS-WINDOWS/ directory in the mwt3_1.exe file. Dos Version (MWT v2.8) The program is available via the web at http://plains.uwyo.edu/~monroem/ or at http://www.coast.net/SimTel/msdos/chemstry.html and http://www.cdrom.com/simtel.net/msdos/chemstry.html The program is also available via Anonymous FTP at ftp.coast.net under the SimTel/msdos/chemstry directory in the mwt2_8.zip file, at ftp.simtel.net under pub/simtelnet/msdos/chemstry in the mwt2_8.zip file, and ftp.ccl.net under the pub/chemistry/software/MS-DOS/Molecular-Weight-Calculator directory in the mwt2_8.exe file. As a final option, I can mail you a UUEncoded or MIME encoded version via e-mail; just drop me a line. Please see my home page for the Dos version features. As for the windows version, ... FEATURES ----------------------------------------------------------------------------- Multi Line Display Display of up to seven formulas with their molecular weights simultaneously. Percent Composition Percent composition of up to seven formulas. Parentheses Are Allowed Handles up to 4 layers of embedded parentheses. For example, (CH3)3CH2CH3 is equivalent to CH3CH3CH3CH2CH3. Hydrates or other appended compounds are allowed. For example, FeCl3-6H2O. User-definable abbreviations Default abbreviations are included for common parts of compounds, including amino acids. See full list. For example, PhCl = C6H5Cl and HOac = CH3COOH. Smart Case Conversion The program will automatically convert lowercase letters to uppercase where appropriate for ease of entering a formula. Exact case matching and non-conversion are also available. Edit and save abbreviations while program is running. Isotopes are recognized using the following notation: ^13C is Carbon-13 C6H5^18OH is heavy-oxygen (Oxygen-18) labeled phenol Feature of weighting parts of a compound relative to the other parts. For example, [.2Na]Cl would have a weight of 0.2*22.989768+35.4527=40.0507 NaCl-[.5H2O] would have a weight of 22.989768+35.4527+0.5*(2*1.00794+15.9994)=67.4501 Percent Solver mode for finding the value of "x" in a compound that satisfies user-specified percent composition requirements. Edit and save elemental values while program is running. Accuracy of the final digit of the molecular wt. and percent composition. Capability to set optional features at the command line when starting the program. Capability of saving options as defaults and automatic loading of the saved options upon program start. Easily Cut, Copy, and Paste information between the Molecular Weight Calculator and other Windows applications. Mole/Mass Converter for easily translating moles to mass (kg, g, mg, pounds, ounces) and back. Formula Finder for finding possible compound empirical formulas for a given molecular weight or for a given set of percent composition data. Capability of printing results. Extensive On-Line Help and Error Checking THE AUTHOR ------------------------------------------------------------------------------ Contacting the Author You can contact me by E-mail at Monroem@UWyo.Edu until I graduate in May 1997. After that, E-mail BPat@UWyo.Edu for information on my whereabouts. About the Author I am an undergraduate chemistry major at the University of Wyoming in Laramie, Wyoming. I plan to attend graduate school and aim to obtain a doctorate in chemistry. I taught myself to program in BASIC on an Apple //c (with 128 Kb of Ram and no hard disk) in 1986 during 6th grade. Since then, I have updated to GW-Basic, then QuickBasic v4.5, QuickBasic v7.1 for DOS, and now Visual Basic 3.0 for Windows. I am familiar with C, and, though I know it is much faster than Basic, I stick with the various forms of Basic since I am much more comfortable with the language. I have also been told that Visual Basic is easier to learn than Visual C, and, in fact, I taught myself Visual basic in two days. /============================================================================\ I was goin' Chopin', but I forgot my Lizst! Had to go Bach to get it. What are the following? Matthew Monroe Black Angus : Black Angus Chemistry Major Black Angus : Texas Longhorn University of Wyoming Black Angus : Brown Swiss ------------------------------------------------- monroem@uwyo.edu Homogeneous Catalyst : Heterogeneous Catalyst /----------------------------------\ | http://plains.uwyo.edu/~monroem/ | This tagline is umop apisdn. \============================================================================/