Calculate the concentration of Pb2+ in each of the following.
Answer to relevant QuestionsThe active ingredient in aspirin is acetylsalicylic acid. A 2.51-g sample of acetylsalicylic acid required 27.36 mL of 0.5106 M NaOH for complete reaction. Addition of 15.44 mL of 0.4524 M HCl to the flask containing the ...A mixture contains 1.0 × 10-3 M Cu2+ and 1.0 × 10-3 M Mn2+ and is saturated with 0.10 M H2S. Determine a pH where CuS precipitates but MnS does not precipitate. Ksp for CuS = 8.5 × 10-45 and Ksp for MnS = 2.3 × 10-13. For each of the following aqueous reactions, identify the acid, the base, the conjugate base, and the conjugate acid. a. H2O + H2CO3 ⇌ H3O+ + HCO3- b. C5H5NH+ + H2O ⇌ C5H5N + H3O+ c. HCO3- + C5H5NH+ ⇌ H2CO3 + C5H5N You may need Table to answer the following questions. a. Which is the stronger acid, HCl or H2O? b. Which is the stronger acid, H2O or HNO2? c. Which is the stronger acid, HCN or HOC6H5? Table An acid HX is 25% dissociated in water. If the equilibrium concentration of HX is 0.30 M, calculate the Ka value for HX.
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