**Main Features
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- Over 3000 entries in a equations, analysis routines,
reference data and a constants library is contained on a 128k card.
- Easy entry of values for variables (with units) using
provided menu keys. Effortless solving and converting of units.

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**Chemistry Reference

**Periodic Table -** is a quick reference tool that
provides basic information on 17 properties of each element of the periodic table,
including atomic number, atomic weight, electron configuration, density, Pauling’s
number, melting and boiling points, ionization potential, and oxidation state among
others. Search routines are provided for seeking properties of each element by name or
symbol.

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****Molecular Weight Calculator -** Allows you to calculate
molecular weights and percent elemental compositions of compounds you enter.

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****Constants Library -** 39 constants under the following
four categories: Fundamental constants (such as Boltzmann’s, Avogadro’s,
Dirac’s, Planck’s, Rydberg’s, and Wein’s displacement), derived atomic
constants (such as radiation, Stefan-Boltzmann, Bohr radius, Compton’s wavelength,
and permittivity of vacuum), universal constants (such as Faraday’s, gas, and molar
volume), and general constants (such as STP, and density of mercury).

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****Solids/Liquids -** Linear and cubic expansion
coefficients; cubic structure properties such as lattice points per cell, nearest neighbor
distance, number of nearest neighbors, and packing fraction; ebullioscopic constants;
cryoscopic constants; boiling points at 760 mmHg for 75 solvents.

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****Gases -** Solve for vapor pressure using mathematical
relationships between the temperature of a condensed phase and its equilibrium pressure;
compute vapor pressure, critical volume and temperature using Van der Waals equations for
61 gases. This section also contains 12 properties of cryogenic gases such as density,
heat of fusion, critical pressure and temperature, heat capacity, as well as density and
vapor pressure of Hg.

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****Acids/Bases -** Indicators; list of pKa for aqueous
inorganic acids/bases at 25 ° C; list of pKa for dissociation of organic materials at 25
° C; typical density, weight percent, and molarities of commercially concentrated acids
and bases.

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****Complexes - **Dissociation constants for inorganic
complexes for common ligands such as ammonia, chloride, fluoride, iodate, nitrate,
sulfate, cyanide, iodide, sulfite, thiosulfite among others.

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****Solubilities - **Solubilities of gases in 100 g of water;
inert gas solubility in 1ml of water; air solubility in water and solubilities of
compounds at 0 ° C, 25 ° C, and 80 ° C. Also, solubility products.

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****Bonds -** Bond calculations include electro-negativity
and degree of ionic character. The calculations are based on the data base available in
the periodic table, bond energy and bond lengths for 8 elements (including halogens,
hydrogen, nitrogen, oxygen and carbon), and bond structures for 12 substances such as
ammonia, chlorine dioxide, water, ethane, hydrogen sulfide, arsine, and formaldehyde.

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****Water - **17 properties of water are listed, including
boiling point, conductivity and dielectric constant, heat capacity, ionization potential,
refractive index, density, compressibility, expansion coefficient, surface tension, and
ionization among others.

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****Electrochemistry - **This** **section includes
reduction potentials, electrical conductivity of liquids at 25 ° C, and electrical
conductivity of electrolytes at 18 ° C at concentrations of 0.01, 0.1, 1.0 and 5.0
Normal.

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****Thermodynamics - **Reference data in 10 categories.

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****Elements and Oxides -** Thermodynamic calculations over a
wide range of temperatures for heat capacity at Cp, enthalpy, entropy, energy function and
FFN.
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****Group I through 0 -** Values of enthalpy, Gibbs free
energy of formation, entropy, and heat capacity at 25 ° C.