.. density_calculator_help.rst

.. This is a port of the original SasView html help file to ReSTructured text
.. by S King, ISIS, during SasView CodeCamp-III in Feb 2015.

Density/Volume Calculator Tool
==============================

Description
-----------

This tool calculates the mass density from the molar volume or vice 
versa. To calculate the mass density, the chemical formula and molar volume 
should be provided.

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Using the tool
--------------

1) Select *Density/Volume Calculator* from the *Tool* menu on the SasView toolbar.

2) Enter the empirical formula of a molecule. For mixtures, the ratio of each 
   of the molecules should be used, for example, (H2O)0.5(D2O)0.5.

3) Use the input combo box to choose between molar volume or mass density and 
   then type in an input value.

4) Press Tab button or click out to perform the calculation.

.. image:: density_tutor.png

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.. note::  This help document was last changed by Steve King, 01May2015
