Question is ⇒ A sample of well water contains 140 gm/m3 Ca2+ ions and 345 gm/m3 Na+ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO3 in gm/m3 is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16), Options are ⇒ (A) 350, (B) 485, (C) 140, (D) 345, (E) , Leave your comments or Download question paper.

Question is ⇒ A sample of well water contains 140 gm/m3 Ca2+ ions and 345 gm/m3 Na+ ions. The hardness of the sample of water, expressed in terms of equivalent CaCO3 in gm/m3 is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16), Options are ⇒ (A) 350, (B) 485, (C) 140, (D) 345, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A sample of well water contains 140 gm/m³ Ca²⁺ ions and 345 gm/m³ Na⁺ions. The hardness of the sample of water, expressed in terms of equivalent CaCO₃ in gm/m³ is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16)
A.	350 [Correct Answer]
B.	485 [Wrong Answer]
C.	140 [Wrong Answer]
D.	345 [Wrong Answer]
View Answer 2 -1 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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