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| <section id="empirical-formulae"> |
| <h1>Empirical Formulae<a class="headerlink" href="#empirical-formulae" title="Permalink to this headline"></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"></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"></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> – 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> – 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"></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"></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> – The grams of carbon dioxide formed as a result of the combustion of the hydrocarbon.</p></li> |
| <li><p><strong>H2O</strong> – 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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