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.
Determine mass by using digital weighing balance and 

Determine density in g/cm3 and kg/m3.

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/m3.

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 cm3.
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/cm3.

Convert the values in g/cm3 to kg/m3 by multiplying with 1000.

Slide Number 14

Tabulated Table

(table4)

Observe that the table has density value in g/cm3 and in kg/m3
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/cm3 and kg/m3

Slide Number 17+18

Assignment

(vernier calipers – measuring diameter of the cylinder)


Hint- Volume of cylinder = r2h

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 = r2h

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.

Contributors and Content Editors

Snehalathak