A solution containing unknown cations is added to three test tubes. The following anions were added and observations were recorded. TEST TUBE 2 3 The solution contains CATIONS High i Solubility (aq) Ag* or Pb²+ OK*, NH₂* or H+ Ba2+ ANION ADDED SO42- S2- OH Low Ag+, Pb²+, Solubility Tl*, Hg₂²+, (s) Hg, Cu Ca²+ or Ba²+ Sr²+ Cl, Br, I- Halides Most S2- Solubility Table Group 1, NHƯ, Group 2 Most ANIONS OH- Group 1, NH4*, Sr²*, Ba²+, Tl OBSERVATION precipitate precipitate precipitate Most SO4²- Most All Group 1 compounds, including acids, and all ammonium compounds are assumed to have high solubility in water. Ag+, Pb²+, Ca²+, Ba²+, Sr²+, Ra². CO3²-, C₂H302 NO3 PO4³-, SO3². Group 1, Most All NH4* Most Ag None

A solution containing unknown cations is added to three test tubes. The following anions were added and observations were recorded. TEST TUBE 2 3 The solution contains CATIONS High i Solubility (aq) Ag* or Pb²+ OK, NH₂ or H+ Ba2+ ANION ADDED SO42- S2- OH Low Ag+, Pb²+, Solubility Tl, Hg₂²+, (s) Hg, Cu Ca²+ or Ba²+ Sr²+ Cl, Br, I- Halides Most S2- Solubility Table Group 1, NHƯ, Group 2 Most ANIONS OH- Group 1, NH4, Sr², Ba²+, Tl OBSERVATION precipitate precipitate precipitate Most SO4²- Most All Group 1 compounds, including acids, and all ammonium compounds are assumed to have high solubility in water. Ag+, Pb²+, Ca²+, Ba²+, Sr²+, Ra². CO3²-, C₂H302 NO3 PO4³-, SO3². Group 1, Most All NH4 Most Ag None

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

A 0.3749 g soda ash sample is analyzed by titrating sodium carbonate with the standard 0.2388M HCl solution, requiring 49.38ml. The reaction is: CO32- + 2H+ → H2O +CO2Calculate the percent sodium carbonate in the sample.
9. Solid sodium carbonate, Na,CO, is used to determine the concentration of a HBr(aq) by titration. What is the role of sodium carbonate in this titration? (A) Catalyst (B) IndicatorA8 (C) Primary standard (D)Proton donor euld bne el hotsolon (A) nielerd auld lom onolbni Vegnto nouloe s lo ophar Hq es Short Answer 1. Consider the following equilibrium for the chemical indicator phenol red, HInd, at pH = 7.3. 0.00 H,0 = H,O* + Ind red HInd + Yellow If 10.0 mL of 0.10 mol/L NAOH(aq) is added, how will the concentration of H,O* (aq) be affected, and what is the color of the resulting solution?
An aqueous solution contains a mixture of 0.0026 M of Fe 2+ and 0.0026 M of Al3+ ions. In order to separate these ions, an aqueous solution of sodium hydroxide has to to be added. Given that Ksp of Fe(OH)2 is 8.0 X 10-16 and the Ksp of Al(OH)3 is 4.6 X 10-33 what is the concentration of the sodium hydroxide needed to precipitate out the first cation?
A solution consists of 0.050 M Mg2+(aq) and Cu2+(aq).Which ion precipitates first as OH-(aq) is added? Whatconcentration of OH-(aq) is necessary to begin the precipitationof each cation? [Ksp = 1.8 x 10-11 for Mg(OH)2, andKsp = 4.8 x 10-20 for Cu(OH)2.]
A 10.0 mL aliquot of H2 SO4 solution was diluted to 100.0 mL. Then 25.0 mL aliquot of the diluted H2 SO4 solution was titrated with 30.0 mL of 0.200 M NaOH solution using phenolphthalein as indicator. What is the molar concentration of the original H2 SO4 solution?
Tungsten trioxide (Wo,) has a rich yellow color and is often used as a pigment in ceramics and paints. To test a ceramic vase for its WO, content, a 10.11 g sample of the vase was ground and reduced with Pb(Hg) to convert any WO, to W+. The resulting w* was transferred to 500.0 mL. of 1.00 M HCI. A 100.00 ml. aliquot of the HCl solution required 13.18 mL of 0.08251 M I 1.00M potassium permanganate (KMNO,) to reach the purple endpoint. A blank required 0.15 ml.. Balance the redox reaction. redox reaction: Mno; + w* Mn* + wo?* Determine the percent Wo, in the ceramic sample. percent WO,:
Suppose you have a solution that might contain any or allof the following cations: Ni2+, Ag+, Sr2+, and Mn2+. Additionof HCl solution causes a precipitate to form. After filteringoff the precipitate, H2SO4 solution is added to the resultingsolution and another precipitate forms. This is filtered off,and a solution of NaOH is added to the resulting solution.No precipitate is observed. Which ions are present in each ofthe precipitates? Which of the four ions listed above must beabsent from the original solution?
A solution may contain any or all of the following cations: Ag+, Pb2+, Ba2+, Ni2+ in an UNKNOWN mixture. HCl is added to the solution and a precipitate forms. That precipitate is removed and NH3 (aq) is added to the supernatant until the solution is basic, no solid forms. After making the supernatant basic, K2CrO4 is then added and a precipitate forms. What cations (Ag+, Pb2+, Ba2+, Ni2+)are present in this unknown sample (This is chemistry and not a writing question)
(a) Write the net ionic equation for the reaction that occurswhen a solution of hydrochloric acid (HCl) is mixed with asolution of sodium formate (NaCHO2). (b) Calculate theequilibrium constant for this reaction. (c) Calculate theequilibrium concentrations of Na+, Cl-, H+, CHO2-, andHCHO2 when 50.0 mL of 0.15 M HCl is mixed with 50.0 mLof 0.15 M NaCHO2.
The hydrogen tartrate anion itself is a weak acid and slightly dissociates in aqueous solution. Htar (aq) H* (aq) + Tar²-(aq) However, HTar is a strong enough acid that it can be titrated with a strong base like sodium hydroxide and this neutralization reaction proceeds to completion. Thus we can analyze a solution for HTar by titration with a standard strong base solution such as aqueous NaOH. HTar (aq) + OH(aq) Tar²(aq) + H2O (a) If 50.0 mL of HTar in water solution was titrated by 16.0 mL of 0.098 M NaOH. Calculate the concentration of HTar", [HTar']? (b) Calculate Ksp in this case? Show your result with the proper number of significant figures. (Hint: use the above result and Ksp = [K*] [HTar']) Type your answer...
What weight of potassium hydrogen phthalate will require 30. mL of a 0.30M NaOH solution to reach the equivalence point? KHP MM 204.22 g/mol .CO;K' .CO;K' NaOH + H2O + *CO,H COƠ,Na'
A titration of 29.2 mL of a solution of the weak base aniline, C@HNH, ( K 4.0 x 10-10), requires 21.61 mL of 0.155 M HCl to reach the equivalence point. CH_NHz(aq) + HyO* (aq) + C,H,NH, (aq)+H,O(l) a What was the concentration of aniline in the original solution? Concentration 0115 ✔ M The equivalence point for a reaction is the point at which one reactant has been completely consumed by addition of another reactant. Thus, [C,HNH] [H₂O+] [OH-]- = 0.155 mol HC1 1.00 L 1 29.2 mL b What are the concentrations of H₂O¹, OH, and C6H5NHs at the equivalence point? M C = 0.115 M x 21.61 ml x M Correct 1 mol C, H, NH, 1 mol HCl Show Hint