<b>Narration</b>

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Welcome to this spoken tutorial on <b>Overview of ChemCollective Vlabs</b>.

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In this tutorial we will learn, About ChemCollective Vlabs

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About ChemCollective Vlabs offline interface
<p>Benefits of ChemCollective Vlabs 
</p>

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Play video clippings of ChemCollective Vlabs tutorials available on our website.

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To record this tutorial I am using,
<p>Mac OS version 10.10.5 
</p>

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ChemCollective Vlabs version 2.1.0-3D

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Java version 1.8.0

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We need Java Runtime Environment to run <b>Vlabs</b> offline version.

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To Install Java, please use the link shown.

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To follow this tutorial learner should have knowledge of, high School Chemistry.

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The ChemCollective Vlabs is a simulation of a chemistry lab.
<p>It is available in both online and offline modes. 
</p>

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It is available free of charge to all educators and students.

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<b>ChemCollective Virtual</b> labs are a part of <b>National Science Digital Library</b>(NSDL).

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I have opened the <b>ChemCollective Vlabs</b> interface.

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The interface has standard menu items like
<p><b>File</b>, <b>Edit</b>, <b>Tools</b>, <b>View</b> and <b>Help</b>. 
</p>

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I will click on <b>Glassware</b> drop-down and select <b>250 mL Beaker</b>.

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Right-click on <b>250 mL Beaker</b>.

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Its context menu opens.
<p>This menu includes <b>Edit menu</b> options along with other options. 
</p>

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Click on <b>View</b> menu and select <b>Themes</b>.

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A sub-menu opens with the following options.

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By default <b>Metal</b> theme is selected.
<p>I will select <b>Presentation</b> theme. 
</p>

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Click on <b>Help</b> menu and select <b>Contents</b>.

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<b> Virtual Lab Help</b> opens. It has <b>Table of Contents</b>.

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Each heading has information about how to use <b>Vlabs</b>.

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Some of the benefits of Vlabs are listed here.

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<b>Vlabs</b> allow careful observation and safe measurement of parameters

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Useful in experiments that involve risks to the health and physical integrity of learners.

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Students can experiment without limitations of space or time.

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<b>Vlabs</b> are cheaper, faster, less risky and more affordable than the real process.

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Teachers can use <b>Vlabs</b> as pre-lab exercise.

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<b>Vlabs</b> will help students learn basic laboratory techniques.

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<b>Vlabs</b> can be used as in-class activities for individuals or teams.

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Now, we will briefly go through the individual tutorials created in this series.

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The First tutorial in the series is <b>Download and Installation of Vlabs</b>

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This tutorial explains, About ChemCollective website and online interface.

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Download and run vlabs on Windows and Mac.

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Here is the video clipping of this tutorial.

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The next tutorial is <b>Preparation of Standard Solutions</b>.

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This tutorial explains, how to prepare standard solution of,
<p>1 molar sodium chloride. 
</p>

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Here is the video clipping of this tutorial.

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---Add the audio---

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The next tutorial is <b>Dilutions and pH measurement</b>.

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In this tutorial we will measure, change in pH for solutions of acids and bases on dilution.

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Here is the video clipping of this tutorial.

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---Add the audio---

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Next tutorial in the series is <b>Density of Metals and Liquids</b>.
<p>In this tutorial, we will determine, Densities of metals and liquids. 
</p>

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Here is the video clipping of this tutorial.

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---Add the audio----

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Next tutorial is <b>Effect of Temperature on Solubility</b>

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This tutorial explains, Effect of temperature on solubility of salts.

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Here is the video clipping of this tutorial.

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Next tutorial in the series is <b>Acid-Base Titrations</b>

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This tutorial explains how to standardise, acid-base using titration method.

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Here is the video clipping of this tutorial.

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Next tutorial is <b>Buffer Solutions</b>.
<p>This tutorial explains how to, prepare acetate buffer and test the buffering action. 
</p>

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Here is the video clipping of this tutorial.

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----Add the audio----

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Next tutorial in the series is <b>Heat of Reaction.</b>
<p>This tutorial explains, how to calculate heats of reaction for neutralization reactions. 
</p>

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Here is the video clipping of this tutorial.

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----Add the audio----

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Next tutorial is <b>Metal Displacement Reactions.</b>
<p>This tutorial explains about metal displacement reactions. 
</p>

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Here is the video clipping of this tutorial.

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---Add the audo---

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Next tutorial is <b>Determination of Equilibrium Constant</b>

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This tutorial explains, How to calculate equilibrium constant.

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About effect of change in temperature and concentration on equilibrium.

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Here is the video clipping of this tutorial.

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Next tutorial is <b>Determination of Solubility Product</b>

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This tutorial explains how to, Determine Solubility of salts
<p>Calculate Solubility Product. 
</p>

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Here is the video clipping of this tutorial.

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----Add the audio----

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Let us summarize, In this tutorial we have learnt,
<p>About ChemCollective Vlabs 
</p>

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About ChemCollective Vlabs offline interface.
<p>Benefits of ChemCollective Vlabs. 
</p>

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Play video clippings of ChemCollective Vlabs tutorials available on our website.

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As an assignment, Open <b>Vlabs</b> interface and explore.
<p>Explore table of contents in the Help menu. 
</p>

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The video at the following link summarises the Spoken Tutorial project.
<p>Please download and watch it. 
</p>

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The <b>Spoken Tutorial Project </b>team: conducts workshops and gives certificates
<p>For more details, please write to us. 
</p>

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Do you have questions in THIS Spoken Tutorial?
<p>Please visit this site 
</p>

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Choose the minute and second where you have the question
<p>Explain your question briefly 
</p>

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Someone from our team will answer them

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The Spoken Tutorial forum is for specific questions on this tutorial
<p>Please do not post unrelated and general questions on them 
</p>

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This will help reduce the clutter
<p>With less clutter, we can use this discussion as instructional material. 
</p>

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Spoken Tutorial Project is funded by <b>NMEICT, MHRD,</b> Government of India.
<p>More information on this mission is available at this link. 
</p>

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This is tutorial is contributed by Madhuri Ganapathi and Snehalatha Kaliappan from, IIT Bombay.
<p>Thank you for watching. 
</p>

