<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2022000300009</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2022.3.81328</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Automatización de una valoración volumétrica ácido-base como prototipo educativo]]></article-title>
<article-title xml:lang="en"><![CDATA[Automation of an acid-base volumetric titration as an educational prototype]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arellano Díaz]]></surname>
<given-names><![CDATA[Sara Marcela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hurtado Chávez]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruelas Abonce]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tristán Flores]]></surname>
<given-names><![CDATA[Fabiola Estefanía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tecnológico Nacional de México  ]]></institution>
<addr-line><![CDATA[Celaya ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>33</volume>
<numero>3</numero>
<fpage>9</fpage>
<lpage>20</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2022000300009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2022000300009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2022000300009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La utilización de prototipos en el proceso enseñanza-aprendizaje promueve en los estudiantes un mayor interés en el aprendizaje de la Química, para con ello mejorar, su capacidad de innovación, creatividad y resolución de problemas. El uso del microcontrolador de Arduino y sus sensores son ampliamente utilizados para el diseño de distintos prototipos, debido a su bajo costo, además cuenta con una programación simple y software de código abierto. Para la presente investigación, se desarrolló un prototipo educativo, el cual realiza una valoración volumétrica ácido-base de forma automatizada, formado por piezas mecánicas, eléctricas, así como de impresión 3D, en consecuencia puede ser implementado y mejorado en carreras de ingeniería donde la química es una asignatura fundamental.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The use of prototypes in the teaching-learning process promotes in students a greater interest in learning Chemistry, thereby enhance, their capacity for innovation, creativity and problem solving. The use of the Arduino microcontroller and its sensors are widely used for the design of different prototypes, due to their low cost, in addition to having simple programming and open-source software. For the present research, an educational prototype, was developed which performs an acid-base volumetric titration in an automated, way which is made up of mechanical, electrical, as well as 3D printing parts, in consequence can be implemented and improved in engineering careers where chemistry is a fundamental subject.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Arduino]]></kwd>
<kwd lng="es"><![CDATA[Enseñanza]]></kwd>
<kwd lng="es"><![CDATA[Prototipo]]></kwd>
<kwd lng="es"><![CDATA[Química]]></kwd>
<kwd lng="en"><![CDATA[Arduino]]></kwd>
<kwd lng="en"><![CDATA[Teaching]]></kwd>
<kwd lng="en"><![CDATA[Prototype]]></kwd>
<kwd lng="en"><![CDATA[Chemistry]]></kwd>
</kwd-group>
</article-meta>
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