Civil Engineering > GATE 2020 SET-2 > Environmental Engineering
Alkalinity of water, in equivalent/litre (eq/litre), is given by 
Where, {} represents concentration in mol/litre. For a water sample, the concentrations of HCO3- = 2 × 10-3 mol/litre, CO32- = 3.04 × 10-4 mol/litre and the pH of water = 9.0. The atomic weights are: Ca = 40; C = 12 and O = 16. If the concentration of OH- and H+ are NEGLECTED, the alkalinity of the water sample (in mg/litre as CaCO3), is
Correct : a
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