Featuring...
A Comprehensive Periodic Table of the Elements	A Powerful Equation Balancing
A Versatile Equation Stoichiometry Workpad	Combine Equations Utility (Hess's Law)
Chemical Formula Molar Mass Composition Calculator	Prepare Solution Utility
Concentration Units Conversation

AcuraCHEM 2.0 comprises the following time-saving utilities:

• A built-in comprehensive Periodic Table covering all known elements listing over 100 properties with added functionality to plot over 30 atomic properties such as atomic radii, ionization energies, electron affinities etc.
  An ideal resource for all elemental data.
  
   
• A powerful equation balancing utility to balance a chemical equation of any type. Ordinary chemical equations involving neutral molecules or oxidation-reduction equations involving charged species can be balanced.
  Equations may be entered as ASCII format using three modes; an unbalanced equation to balance, a balanced equation to check and a list of species for which one or more balanced equations may be generated.
  
   
• A versatile equation stoichiometry workpad which allows detailed stoichiometric calculations on any balanced equation with unlimited number of reactants and products.
  Stoichiometric calculations may involve any number of reactants/products in grams, moles or mL of molar solutions. If more than one reactants are specified, a limiting reactant is found based on input data and the calculations are performed accordingly.
  
   
• The Equation Balancing utility as well as the Equation Stoichiometry workpad place no limit to the number of formulas an equation may have. However, it is unlikely that a practical situation may produce an equation with more than 20 species. The notorious Blakely equation (G.R. Blakely, J. Chem Educ., Vol 59, pp. 728-734 (1982)) has 20 species
  
  88H₂ + 15Ca(CN)₂ + 6NaAlF₄ + 10FeSO₄ + 3MgSiO₃ + 6KI + 2H₃PO₄
  + 6PbCrO₄ + 12BrCl + 3CF₂Cl₂ + 20SO₂ = 6PbBr₂ + 6CrCl₃ +
  3MgCO₃ + 6KAl(OH)₄ + 10Fe(SCN)₃ + 2PI₃ + 3Na₂SiO₃ + 15CaF₂ + 79H₂O
  
  AcuraCHEM 2.0 allows you to balance equations similar or even more complicated than Blakely's equation with a click of a mouse, you may also carry out stoichiometric calculations with the balanced equation produced.
  
   
• A Hess's Law Solver Utility to combine chemical equations which is ideal for thermochemical applications (Hess's law of heat summation) and in kinetic/mechanistic studies.
  This utility allows the user to linearly combine a set of chemical equations to form a target equation.
  A typical application of this utility is the use of Hess's Law of heat summation where a number of thermochemical equations are combined to form a target equation as in the following simple example.
  
  Given equations:
  CaO + Cl₂ = CaOCl₂  H = -110.9 kJ/mol
  H₂O + CaOCl₂ + 2NaBr = 2NaCl + Ca(OH)₂ + Br₂  H = -60.2 kJ/mol
  Ca(OH)₂ = CaO + H₂O  H = 65.1 kJ/mol
  
  Target equation:
  Cl₂ + 2NaBr = 2NaCl + Br₂ H = ? kJ/mol
  
  In this trivial example, simply add the three given equations to get the target equation. However, in a more complex situation, the process of finding the proper linear combination is not always straightforward.
  
   
• A chemical formula molar mass/composition calculator. .
  This tool is powered by an intelligent parser which allows the calculation of molar mass and percent composition for any formula regardless of complexity such as:
      [Cr(N₂H₄CO)₆]₄[Cr(CN)₆]₃ to give the following output:
      Molar Mass = 2273.6274 g/mol
      Percent Composition:
   

  	7	Chromium	%Cr	= 16.008
  	66	Nitrogen	%N	= 40.659
  	96	Hydrogen	%H	= 4.256
  	42	Carbon	%C	= 22.188

  
   
• An easy to use utility to prepare standard aqueous/non-aqueous solutions in a diversity of concentration units including:
   
  • Molarity (mol/L)
  • Molal (mol/kg solvent)
  • Mole fraction
  • Mole percent (mol%)
  • Weight Fraction (w/w)
  • Weight Percent (w%)
  • Weight/Volume (g/mL)
  • Part Per Million (ppm)
  • Part Per Billion (ppb)
  
  This utility saves the chemist precious laboratory time, helps eliminate errors when preparing standard solutions, and saves money. This tool is also ideal for working scientists, teachers as well as lab technicians and instructors.
  
   
• A Concentration Units Conversion utility which provide an easy inter-conversion among all common concentration units.
  
   
• AcuraCHEM 2.0 is provided with a convienient Options screen where you may select your preferences for display modes, units, etc. Preferences are then saved internally and will remain active unless you change them again should your preferences change.