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Ranked as 33961 on our all-time top downloads list with 1320 downloads.

Filename chemmass.zip (Download)
Title ChemMass
Description A very useful program that installs a hook, that converts all chemical formulas to molar masses. This will save you at least 2 hours over the course of a year.
Author Brian Coventry (bcoventry77@gmail.com)
Category TI-83/84 Plus Assembly Science Programs (MirageOS)
File Size 15,903 bytes
File Date and Time Mon May 17 01:10:16 2010
Documentation Included? Yes
Source Code Included? Yes



Review by  William Park
Reviewed on 2010-07-10
ChemMass is much better than all the BASIC molar mass calculators out there. Being an ASM program, it's actually possible to use ChemMass to get molar mass within a BASIC program (like a stoichiometry solver). It also is much faster and easier to use than the BASIC calculators, since you are able to use it from the homescreen and even within strings (something I had not predicted). Its usage is simple: type a ? with the substance name (eg. ?CuSO4) and press Enter. ChemMass will return the molar mass (in this case, 159.61).

However, ChemMass has two problems that prevent me from keeping it on my calculator. It uses appbackupscreen for installing a hook, which almost every other ASM program with hooks uses. However, in my experience, installing CalcUtil on top of it uninstalled ChemMass's hook, meaning you are unable to use any other ASM libraries. Additionally, while you can call ChemMass from a BASIC program, for some reason, BASIC programs over a certain size fail to execute, regardless of whether ChemMass is used within the program, with only a simple "Done" displayed. Running the BASIC program from a shell such as DoorsCS and MirageOS only crash the calculator, forcing a RAM clear.

While ChemMass certainly is a useful program, its (admittedly major) problems prevent me from recommending it for every chemistry student.

Overall score - 7/10


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Archive Contents
Name Size
ChemMass/CHEMMASS.8XP   1398
ChemMass/chemmass.z80   9303
ChemMass/readme.txt   1513
ChemMass/screenShot.gif   17623

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