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rnelsonchem committed Mar 22, 2023
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Expand Up @@ -4,13 +4,10 @@ pHcalc
*pHcalc* is a Python library for systematically calculating solution pH,
distribution diagrams, and titration curves.

This package is Python 3.5 compatible with dependencies_ only on Numpy and
This package is Python3 compatible with dependencies_ only on Numpy and
Scipy. If you will be plotting the data, then there is an `optional
dependency`_ on Matplotlib as well.

Bug fixes, questions, and update requests are encouraged and can be
filed at the `GitHub repo`_.

.. _dependencies:

Dependencies
Expand All @@ -30,15 +27,17 @@ Optional Packages
Installation
------------

*pHcalc* is only a single Python file, so installation is quite simple. After
installation of the dependencies_, the most recent version of *pHcalc* is
available via ``pip``, either from PyPI_ (stable) or the `GitHub repo`_ (most
*pHcalc* is available via ``pip``, ``conda``, or the `GitHub repo`_ (most
recent).

From PyPI_::
From PyPI::

$ pip install pHcalc

Via Conda::

$ conda install -c rnelsonchem pHcalc

If you have ``git`` installed on your system, then you can get the most
recent, unrelased version from the `GitHub repo`_::

Expand All @@ -65,7 +64,7 @@ at a given pH value is determined. Multiplying this by the concentration of
acid in solution provides the concentration of each acidic species in the
system, and these concentrations are used to balance the charge.

Using this methodology bases and strong acids can be described using neutral,
Using this methodology bases and strong acids can be described using inert,
charged species. These are ions that do not react with water, such as |Na+|
and |Cl-|. In this context, any |Cl-| in solution must be charged balanced
with an appropriate amount of |H3O|, which would define HCl in solution.
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