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GATE-Civil-Engg-2018-->View question

A water sample analysis data is given below ( GATE Civil engg 2018)

A water sample analysis data is given below.

Ion Concentration, mg/L Atomic Weight
Ca2+ 60 40
Mg2+ 30 24.31

400 61

The carbonate hardness (expressed as mg/L of CaCO3, up to one decimal place) for the
water sample is ______

Asked On2019-06-05 02:11:26 by:gokilapriya

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Ans. 273.4 
To find : Carbonate hardness 3 (mg/Lof ) CaCO 
 Carbonate hardness  
Minimum(total hardness,total alkalinity)
Total hardness =  273.4mg/l CaCO3
Total alkalinity  = 327.87mg/l as CaCO3
Total hardness < Total alkalinity  
Carbonate hardness, CH = 273.4mg/l as CaCO3

Answerd on:2019-06-07 Answerd By:Jaynil-Gaglani


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