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<li class="toctree-l1 current"><a class="current reference internal" href="#">Empirical Formulae</a><ul>
<li class="toctree-l2"><a class="reference internal" href="#ef-by-percentage-composition">EF by Percentage Composition</a></li>
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<section id="empirical-formulae">
<h1>Empirical Formulae<a class="headerlink" href="#empirical-formulae" title="Permalink to this headline">ο</a></h1>
<section id="ef-by-percentage-composition">
<h2>EF by Percentage Composition<a class="headerlink" href="#ef-by-percentage-composition" title="Permalink to this headline">ο</a></h2>
<dl class="py function">
<dt class="sig sig-object py" id="chemlib.chemistry.empirical_formula_by_percent_comp">
<span class="sig-prename descclassname"><span class="pre">chemlib.chemistry.</span></span><span class="sig-name descname"><span class="pre">empirical_formula_by_percent_comp</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#chemlib.chemistry.empirical_formula_by_percent_comp" title="Permalink to this definition">ο</a></dt>
<dd><blockquote>
<div><p>Get the empirical formula given the percentage compositions of all elements in the compound.</p>
</div></blockquote>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>kwargs</strong> β The percentage compositions of elements in the compound <code class="docutils literal notranslate"><span class="pre">(<Element</span> <span class="pre">symbol></span> <span class="pre">=</span> <span class="pre"><Percentage</span> <span class="pre">Composition></span> <span class="pre">...)</span></code></p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>The empirical formula of the compound.</p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p>str</p>
</dd>
<dt class="field-even">Raises</dt>
<dd class="field-even"><p><strong>ValueError</strong> β If the sums of the percentages is not equal to 100.</p>
</dd>
</dl>
</dd></dl>
<p>Get the empirical formula of a compound that is composed of 80.6% C, and 19.4% H by mass:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">chemlib</span> <span class="kn">import</span> <span class="n">empirical_formula_by_percent_comp</span> <span class="k">as</span> <span class="n">efbpc</span>
<span class="gp">>>> </span><span class="n">efbpc</span><span class="p">(</span><span class="n">C</span> <span class="o">=</span> <span class="mf">80.6</span><span class="p">,</span> <span class="n">H</span> <span class="o">=</span> <span class="mf">19.4</span><span class="p">)</span>
<span class="go">'C1H3'</span>
</pre></div>
</div>
</section>
<section id="combustion-analysis">
<h2>Combustion Analysis<a class="headerlink" href="#combustion-analysis" title="Permalink to this headline">ο</a></h2>
<dl class="py function">
<dt class="sig sig-object py" id="chemlib.chemistry.combustion_analysis">
<span class="sig-prename descclassname"><span class="pre">chemlib.chemistry.</span></span><span class="sig-name descname"><span class="pre">combustion_analysis</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">CO2</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">H2O</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#chemlib.chemistry.combustion_analysis" title="Permalink to this definition">ο</a></dt>
<dd><blockquote>
<div><p>Get the empirical formula of a hydrocarbon given the grams of CO2 and grams of H2O formed from its combustion.</p>
</div></blockquote>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>CO2</strong> β The grams of carbon dioxide formed as a result of the combustion of the hydrocarbon.</p></li>
<li><p><strong>H2O</strong> β The grams of water formed as a result of the combustion of the hydrocarbon.</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>The empirical formula of the hydrocarbon.</p>
</dd>
<dt class="field-odd">Return type</dt>
<dd class="field-odd"><p>str</p>
</dd>
</dl>
</dd></dl>
<p>A hydrocarbon fuel is fully combusted with 18.214 g of oxygen to yield 23.118 g of carbon
dioxide and 4.729 g of water. Find the empirical formula for the hydrocarbon.</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">from</span> <span class="nn">chemlib.chemistry</span> <span class="kn">import</span> <span class="n">combustion_analysis</span>
<span class="gp">>>> </span><span class="n">combustion_analysis</span><span class="p">(</span><span class="mf">23.118</span><span class="p">,</span> <span class="mf">4.729</span><span class="p">)</span>
<span class="go">'CH'</span>
</pre></div>
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