Civil Engineering - Civil

Question of the Day
GATE 2006   CE   Question No. 84

Statement for Linked Answer Questions 84 and 85

A water sample contains the following dissolved

ions. [Na+] = 56 mg/L;[Ca2+]
  = 40 mg/L;Mg2+]
  = 30mg/L;[A13+]
  = 3mg/L; [HCO3]
  = 190 mg/L; [Cl-] = 165 mg/L; Water Ph is 7

Atomic weights : Ca:40; Mg: 24;AI:27;H:1, C:12; O:16; Na:23; CI:35.5

QUE:The total hardness of the sample in mg/L as CaCO3 is

(a) 484 (b) 450 (c) 242 (d) 225

 

GATE Admission Predictor
GATE Coaching Institutes
OR