Molecular Weight Calculator

General Chemistry Software Download

Molecular Weight Calculator:
1) 103 elements
2) all stable isotopes
3) deuterium(e.g.D2O)
4) ions
5) braces (multilevel)
6) arg. calculations (mol-mass conv.)
7) calculations argumented by an element
8) crystal water
9) error guidance

Signs and symbols

Tab. Molecular Calculator (signs and symbols)
Sign/symbol Example Interpretation
m 2mH2O mol
g 2gH2O gram
E or e 2E-3mH2O or 2e-3mH2O exponent
e- e- electron symbol (normally used by "balance")
, 2mH2,H2O argument separator
. 2.3gH2O decimal separator
* CaCl2*5H2O crystal water separator
D D2O or H[2]2O deuterium (symb. reserved for this isotope)
[ ] H[2] or [Fe(CN)6]+2 number of nucleons square brackets (isotopes and complex)
( ) Ca(NO3)2 braces
+ Ca+2 or Ca++ pos. charged ion
- SO4-2 or SO4-- neg. charged ion
0-9 10gH2O numbers
H-Lr HHeLiBeBCNO Elements: Hydrogen --> Lawrencium



Tab. Explore Molecular Calculator
Normal Chemix Interpretation
H2SO4 and NO3- H2SO4 and NO3- Index
H2SO4 H2SO4 Formula mass(weight)
C[13]5H[2]12 C[13]5H[2]12 Enriched
2 moles of H2SO4 2mH2SO4 Arg. formula (mol)
2 grams of H2SO4 2gH2SO4 Arg. formula (mass)
2 moles of sulfur in H2SO4 2mS,H2SO4 Formula arg. by element and mol
2 grams of sulfur in H2SO4 2gS,H2SO4 Formula arg. by element and mass
2 moles of H2 in H2SO4 2mH2,H2SO4 Formula arg. by molecuel and mol
2 grams of H2 in H2SO4 2gH2,H2SO4 Formula arg. by molecuel and mass
2 moles of deuterium in H[2]2SO4 2mH[2],H[2]2SO4 Enriched formula arg. by isotope and mol
2 grams of deuterium in H[2]2SO4 2gH[2],H[2]2SO4 Enriched formula ar by isotope and mass
CaCl2*5H2O CaCl2*5H2O Crystal water comp.
2 moles of CaCl2*5H2O 2mCaCl2*5H2O 2 moles of cryst.water comp.
[Fe(CN)6]+2 [Fe(CN)6]+2 Complex brackets
0.025 moles of C4H10 2.25E-2mC4H10 Use of exponent in arg.
SO4-2 or SO42- or SO4 -- SO4-2 Ions



Tab. Examples from program
Examples Chemix Interpretation
1) H2SO4 Formula mass sulfuric acid
2) H[2]2SO4 or D2SO4 Formula mass sulfuric acid (enriched by deuterium)
3) 2gH2SO4 2 grams of sulfuric acid
4) 2mH2SO4 2 moles of sulfuric acid
5) 2gS,H2SO4 2 grams of sulfur in sulfuric acid
6) 2mS,H2SO4 2 moles of sulfur in sulfuric acid



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