Exp.7 To determine the surface tension of given liquid by drop weight method using stalagmometer.

Following method used in measurement of surface and interfacial tension
1) Capillary rise method
2) Tensiometer method (Du Nouy ring method)
3) Bubble pressure method
4) Drop weight method
5) Drop count method

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Information solution ❌ sound polution

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Madam please tell
How to calculate density ?
It is very confusing

[@siddharthnishad4557]

it just simple you know specific density((s.d= density of liquid/density of water at standard)),
take same volume for both liquid&water(like .5 liter both) then put (mass/volume) value at the place of density. volume is same for both then it will cancel out and we get specific density (S.D=mass of liquid/mass of water).
when you get specific density like 2 or .8 it is the value of density of liquid but the unit is kg/liter or g/cm^3
example: liquid A mass 10 kg volume 2 m^3
water weight 4 kg volume 2 m^3
then Specific density=(10/2)/(4/2)=2.5
so density of liquid A is 2.5 g/cc or kg/liter if you take density of water is 1000 kg/m^3 then density of liquid A is 2500 kg/m^3

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After decimal count number separately
Like seventeen point one four
Not seventeen point fourteen

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Mam next practical relative density bottle

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Tq

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Thanks you mam