View source for Chemistry-Lab-Experiments/C2/Determination-of-Density-of-Solids/English


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||'''Visual Cue'''
||'''Narration'''
|- 
| | '''Slide Number 1''' 

'''Title Slide''' 
|| Welcome to this tutorial on '''Determination of Density of Solids'''. 

|- 
| | '''Slide Number 2''' 

'''Aim of the Experiment''' 
|| The aim of this experiment is to, 


Measure the dimensions of iron cuboid using '''vernier caliper'''.<br/> 

Determine mass by using digital weighing balance and <br/> 

Determine density in g/cm<sup>3 </sup>and kg/m<sup>3.</sup> 

|- 
| | '''Slide Number 3''' 

'''Apparatus''' 

'''Image1.png''' 

|| Apparatus required are, 

Digital weighing balance 

|- 
| | '''Slide Number 4''' 

'''Apparatus''' 

'''Image2.png''' 

'''Image3.png ''' 
|| Digital '''vernier caliper''' 

Iron cuboid 

|- 
| | '''Slide Number 5''' 

'''About the Experiment ''' 


 
|| Density is the measure of amount of substance present in unit volume. 

The SI unit of density is kg/m<sup>3.</sup> 

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| | 
|| Let us start the demonstration. 

|- 
| | '''Slide Number 6''' 

'''Vernier Caliper''' 

'''Image2-1.png''' 

|| This is the digital '''vernier calliper.''' 

It has lower jaws, upper jaws, stem, roller and screw clamp. 

It also has an '''On and Off button''', 

'''Zero or Absolute button''' and 

'''inch or millimeter''' button. 

|- 
| | '''Slide Number 7''' 

'''Vernier Caliper''' 

'''Image5-1.png''' 


|| This''' vernier caliper''' can measure the dimensions precisely up to 0.01millimeter. 

|- 
| | '''Slide Number 8''' 

'''Regular Objects''' 

'''Image6.png''' 
|| It is used for measuring dimensions of regular geometric objects, 

like cuboid, cylinder, sphere etc. 

|- 
| | '''Video clip1''' 

point to Switch on button 

point to Switch off. 

point to millimeter/inch 


 
|| To switch on the '''vernier''' '''caliper,''' Press''' on or off button'''. 


You can select the unit using '''inch/millimeter''' button. 
|- 
| | '''Slide number 9''' 

'''Observation Table''' 

'''(table1)''' 
|| This is the observation table to note the dimensions of iron cuboid. 

|- 
| | '''Image 5''' 

'''Images with different orientations.''' 


Point out to length, breath and height. 
|| Let us view the dimensions of cuboid. 

This is length. 

This is breadth. 

This is height. 

|- 
| | '''Video clip2''' 

'''Dimension of the cuboid''' 

taken reading should be enter in the tabular column. 
|| Let us measure the dimensions using '''vernier caliper'''. 

Open the lower jaws and insert the cuboid. 

Measure the length in millimeter and note in the table. 

Measure the breadth and note. 

Measure the height and note. 

|- 
| | '''Slide Number 10''' 

'''Observation Table''' 

'''Filled(table2)''' 
|| This is the table with filled values. 

 
|- 
| | '''Slide Number 11''' 

'''Observation Table''' 

'''(table3)''' 

Show the new table 

point in the table 
|| Convert the values in millimeter to centimeter in each case dividing by 10. 

This is the table after conversion. 

|- 
| | '''Slide Number 12''' 

'''Volume of Iron Cuboid''' 
|| Using the given formula calculate the volume of the cuboid in cm<sup>3</sup>. 

|- 
| | '''Vidoe clip 3''' 

'''measuring mass of cuboid using digital balance. ''' 

Close the door. At 2.56 min 

Note the mass of cuboid in the table. At 3.03 min 

|| Let us now measure the mass of the cuboid using digital weighing balance. 

Switch on the weighing balance, 

Press the '''Tare''' button to make the reading as 0.000 g. 

Open the side door and place the cuboid. 

Close the door. 

Note the mass of cuboid in the table. 

|- 
| | '''Slide Number 13''' 

'''Density of Iron''' 
|| Using the given formula calculate the density of iron. 

This is the value of density of iron in g/cm<sup>3</sup>. 

Convert the values in g/cm<sup>3</sup> to kg/m<sup>3</sup> by multiplying with 1000. 

 |- 
| | '''Slide Number 14''' 

'''Tabulated Table''' 

'''(table4)''' 
|| Observe that the table has density value in g/cm<sup>3</sup> and in kg/m<sup>3</sup> 

|- 
| | '''Slide Number 15''' 

'''Reported value''' 
|| Compare the measured density with reported value. 

|- 
| | '''Slide Number 16''' 

'''Summary''' 
|| Let us summarise. 

In this tutorial we have learnt to, 

Measure the dimensions of iron cuboid using '''vernier caliper.''' 

Determine mass by using a digital balance 

Determine density in g/cm<sup>3</sup> and kg/m<sup>3</sup> 

|- 
| | '''Slide Number 17+18''' 

'''Assignment ''' 

(vernier calipers – measuring diameter of the cylinder) 


Hint- Volume of cylinder = r<sup>2</sup>h 
|| As an assignment, 


Measure radius and height of the Aluminium cylinder. 

Calculate the volume using the formula. 

Measure the mass of Aluminium cylinder in gram. 

Tabulate the values. 

Calculate the density of Aluminium. 


Hint- Volume of cylinder = r<sup>2</sup>h 
 |- 
| | '''Slide Number 19''' 

'''Content contribution''' 
|| The content for this tutorial is contributed by, 

'''Talent Development Centre ''' 

'''Indian Institute of Science ''' 

'''Chitradurga, Karnataka''' 

|- 
| | '''Slide Number 20''' 

'''Acknowledgement''' 
|| This project is funded by '''Pandit Madan Mohan Malaviya National Mission on Teachers and Teaching.''' 

|- 
|| 
|| This tutorial is contributed by '''TDC '''team. Thank you for joining. 
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