The chemical formula of the chelating agent Versence is C_(2) H_(4) N_(2) (C_(2) H_(2) O_(2) Na) If each mol of this compound could bind 1 mol of Ca^(2+), what would be the rating of pure Versene, expressed as mg CaCO_(3) bound per g. Of chealting agent? Ca^(2+) is expressed in terms in terms of amount of CaCO_(3) it could form. [Mw "of vesene" = 380, Mw "of" CaCO_(3) = 100 g mol^(-1)]

The chemical formula of the chelating agent Versence is C_(2) H_(4) N_

1.	The chemical formula of the chelating agent Versence is C_(2) H_(4) N_(2) (C_(2) H_(2) O_(2) Na) If each mol of this compound could bind 1 mol of Ca^(2+), what would be the rating of pure Versene, expressed as mg CaCO_(3) bound per g. Of chealting agent? Ca^(2+) is expressed in terms in terms of amount of CaCO_(3) it could form. [Mw "of vesene" = 380, Mw "of" CaCO_(3) = 100 g mol^(-1)]
Answer» SOLUTION :For each mol of compound: WEIGHT of `CaCO_(3) = (1 mol Ca^(2+)) ((1 mol CaCO_(3))/(mol Ca^(2+)))` `((100 g CaCO_(3))/(mol CaCO_(3))) ((10^(3) mg)/(g))` `= (1 xx 1 xx 100 xx 10^(3))/(1) = 1.0 xx 10^(5)` Weight of `CaCO_(3)//g` of versene `= (1.0 xx 10^(5) mg CaCO_(3))/(380 g "versene")` `= 263 mg`