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which of the following could be used to separate pb2+ from ba2+ by precipitation? what can...
Which of the following solutions could be used to separate the cations Ca2+ and Mg2+ from each other by precipitation? NaNO3(aq) Na2CO3(aq) K2SO4(aq) KOH(aq)
Please explain Precipitation. Below are key questions I have. 1. Know that the precipitation of an ionic compound on mixing aqueous solutions can be predicted using the Q expression and comparing Q to Ksp. 2 .Define selective precipitation, and know and understand how cations can be selectively precipitated based on their differential solubility with various anions.
What chemical is used to separate Ca2+ and Ba2+ ions from a solution containing Ca2+, Ba2+, NH4+, and K+ ions? What are the products of the Ca2+ and Ba2+ ions with this chemical?
After the addition of H2SO4, the above sample is centrifuged and decanted. Which of the following cations remaining in the supernatant could you separate, by causing them to precipitate, with the addition of H2CO3? (Hint: H2CO3 is a source of HCO3− and carbonate ions. Select all that apply.) Ag+ K+ NH4+ Hg22+ Pb2+ Mg2+ Sr2+ Ba2+ Cu2+ Al3+ Fe3+ (f) Choose one of the cations above and write the net precipitation reaction that occurs. (Use the lowest possible coefficients. Include...
Qualitative Analysis Lab Introduction design and carry out a chemical analysis scheme to separate and identify a series of cations and anions. By this point in your chemistry career you will have encountered a fair amount of chemistry and are familiar with most of the fundamental techniques that we use in general chemistry. This lab will require two class sessions to complete. You will have the chance to apply knowledge you have gained from previous labs and learn about the...
EXPLAIN PLEASE! 10. Based on solubility rules, which reagent could be used to separate Br from CH.CO, when added to an aqueous solution containing both? A. Nal(aq) B. AgNO3(aq) C. CuSO4(aq) D. Ba(OH)2(aq) E. Fe(NO3)2(aq)
What reagent could not be used to separate Br from C032 when added to an aqueous solution containing both ions. Ca(NO3)2(a) None of these could be used to separate Brand CO 2 Cu(NO3)2(aq) Fe(NO3)2(aq) AgNO3(aq)
Environmental issues arising from arsenic toxicity are frequently associated with the oxidation of pyrite, which generates significant SO4^2- and acid. Write a balanced half-cell reaction for the oxidate of HS^- to SO4^2-. Assume aHS^-=aSO4^2- (a stands for activity) and plot a phase boundary between the two ions on an Eh-pH diagram. PLEASE HELP! I dont understand how to do this at all. Thermodynamic data Delta Gf (KJ/mol) Al^3+ -485.0 Ni^2+ -45.6 NH4^+ -79.31 NO3^- -108.74 SO4^2- -177.75 HS^- 2.93...
06 Lab 3a Separation.pdfQuestion 1 of prelabExplain in a few sentences how extraction can be used to separate an organic compound from sodium chloride. Prelab 1. Explain in a few sentences how extraction can be used to separate an organic compound from sodium chloride. 2. Why is the CH2Cl2 layer the bottom layer in a CH2Cl2 / aqueous NaHCO3 extraction? In this experiment, what does the CH2Cl2 layer contain? What does the aqueous NaHCO3 layer contain? 3. In general, how...
Which balanced chemical equation could represent the following result of a precipitation reaction? 0 0 0 400: Select one: • A. K2C1O4(aq) + 2AgNO3(aq) + Ag2 CrO4(s) + 2KNO3(aq) O B. MgSO4(aq) + 2AgNO3(aq) - Ag2SO4(s) + Mg(NO3)2(aq) O C. MgCl2(aq) + 2AgC2H302(aq) + 2AgCl(s) + Mg(C2H302)2(aq) O D. 2K3PO4(aq) + 3Cr2(SO4)3(aq) -- CrPO4(s) + 6KCl(aq) O E. K2S(aq) + Pb(NO3)2(aq) -- PbS(s) + 2KNO3(aq)