Get the information you need from a community of experts on IDNLearn.com. Discover reliable and timely information on any topic from our network of experienced professionals.
A solution of tap water contains both Fe²⁺ and Pb²⁺. While small amounts of Fe²⁺ can be fine for human health, even small amounts of Pb²⁺ can be harmful. Based on the provided Ksp values, assuming equimolar concentrations of Fe²⁺ and Pb²⁺, which anions could be used to selectively precipitate out the Pb²⁺ (i.e., not the Fe²⁺)? Circle all that apply. I. CO₃²⁻ (Ksp FeCO₃ = 3.07 × 10⁻¹¹; Ksp PbCO₃ = 7.4 × 10⁻¹⁴) II. OH⁻ (Ksp Fe(OH)₂ = 4.87 × 10⁻²⁰; Ksp Pb(OH)₂ = 1.43 × 10⁻¹⁷) III. S²⁻ (Ksp FeS = 3.72 × 10⁻¹⁹; Ksp PbS = 9.04 × 10⁻²⁹) IV. Cl⁻ (Ksp FeCl₂ = 3.45; Ksp PbCl₂ = 1.17 × 10⁻⁵)
Sagot :
Thank you for participating in our discussion. We value every contribution. Keep sharing knowledge and helping others find the answers they need. Let's create a dynamic and informative learning environment together. Your questions are important to us at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.
