Pka

XDrawChem is a two-dimensional molecule drawing program. It is similar in functionality to other molecule drawing programs such as ChemDraw (TM, CambridgeSoft). It can read and write MDL Molfiles, and read ChemDraw text and binary files, to allow sharing between XDrawChem and other chemistry... Platforms: Windows, Mac, *nix, C/C++, BSD Solaris

This program can be used to fit pKa values to pH dependent data where the data titrates from one value to another e.g. ppm data, absorbance data, fluorescence data, Ki and Km data etc. This program fits and plots data to the equations:- If one pKa only Sobs=S1(1+K1/H)+S2/(1+H/K1) or... Platforms: Mac

CHEMIX School is an educational tool for learning chemistry. It is geared toward college-level chemistry, but is also appropriate for high-school students, chemists, and teachers. It is equipped with a periodic table containing physical properties for all stable isotopes including more than 2500... Platforms: Windows

ChemDBsoft is chemical database software for management of databases of any size. Includes: free structure drawer, simple data views, searches by structure and substructure, multiple database searches, SDF import/export, duplicate removal, database comparison, chemical web server. Calculation and... Platforms: Windows

CHEMIX School is an educational tool for learning chemistry. It is geared toward college-level chemistry, but is also appropriate for high-school students, chemists, and teachers. It is equipped with a periodic table containing history, 19 physical properties + number of stable isotopes,... Platforms: Windows, Windows 8, Windows 7, Windows Server

Quadratic is a simple program that calculates the answers to the quadratic formula. In addition, it calculates pH in strong acid and weak acid dissociations given the pKa or Ka and the concentration of the original acid. Platforms: Mac

A pH Calculator, a Virtual Titrator, a Real Titration Data Analyzer, a Distribution Diagram Generator - that's CurTiPot, the all-in-one freeware to learn, teach and work with chemical equilibrium of acids, bases, salts and buffers at home, classroom, interactive "dry lab", routine or research... Platforms: Windows

This program calculates the observed rate constant (kobs) for reactions dependent on 1 to 7 protonic states. XH6 = XH5 = XH4 = XH3 = XH2 = XH = X The program calculates and plots the pH curves for the protonic states XH6, XH5, XH4, XH3, XH2, XH or X as well as the composite curves and... Platforms: Mac

Z1 Backbone Of Trust CertServer is a database, which centralises and automates the verification and administration of external certificates. Instead of burdening each individual user with these tasks, Chief Security Officers, IT-Security-Manager etc. all certificate administration is... Platforms: *nix