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Soil scientist collects unsaturated 200 cm3 sample of soil having weight 220 g. if the dried weight of soil is 180 g. then, find the water content available in the soil.


1. 0.222
2. 0.176
3.  0.133
4. 0.166

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Correct Answer - Option 1 : 0.222

Concept:

Water content formula is given by:

w = Ww/Ws

where, 

w = Water content

Ww = Weight of water

Ws = Weight of solids

Calculation:

Given data :

Weight of unsaturated sample = 220 g

Weight of dried sample = Weight of solids, Ws = 180 gm

Now, finding the weight of water, Ww

So, Ww = Weight of unsaturated sample - Weight of dried sample

= 220 - 180 = 40 g

So, Water content, w = \(40 \over 180\) = 0.222

Note: There is no use of sample volume in finding out water content

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