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Question 8 (2 points) An unknown solution is either 0.10 M LINO3 or 0.10 M Ba(NO3)2...
Be sure to answer all parts. A solution contains AgNO3 and Ba(NO3)2. What substance could be added to the solution to precipitate Ag+ ions, but leave Ba2+ ions in solution? Na2SO4 NaCl NaNO3 Na2S After removal of the Ag+ compound, what could then be added to the solution to precipitate the Ba2+ ions? NaCl Na2SO4 NaNO3
Suppose you have an unknown clear, colorless solution. In attempt to identify it, you add NaOH dropwise and find that a white gelatinous precipitate forms, but when more NaOH was added the precipitate dissolved again. To another test tube of the same unknown solution is added AgNO3 dropwise, and a white precipitate forms. What salt most likely comprises the unknown solution? Explain your reasoning (3 points) 2. Suppose you have a different unknown solution that you know to be 50/50...
DATA TABLE STEP 1 AgNO3 1,C,,2 STEP 3 Ba(NO3)2 SO - Decant white BaSO4 ppt (CONFIRMS SO2-) yellow Agl. AgCl ppt NH,OH yellow Agl. AgCl ppt RECYCLE Chemical Waste HNO blue litmus Decant white AgC ppt (CONFIRMS CT) yellow Agl.ppt (CONFIRMST) red spot 6. Refer to the Data Table to determine which anions (I-, Cl-, SO42-) are present and absent in an unknown solution given the following observations. • The unknown solution in test tube #1 plus AgNO3 gives a...
5. If 75.0 mL of a 0.20 M solution of sodium nitrate (NaNO3) is mixed with 25.0 mL of 0.10 M barium nitrate (Ba(NO3)2), what is the molar concentration of nitrate in the resulting solution? A. 0.10 M D. 0.15 M B. 0.20 M E. 0.18 M C. 0.30 M
3 pts Question 34 As a mixed 1.0-L solution that is 0.10 M in each of Ba(NO3)2 Ca(NO3)2 and Pb(NO3)2 has 0.0050 M Na Cro4 added dropwise to it, which would precipitate first? OCacro OPbCros BaCro O none of these would precipitate, they are soluble salts
QUESTION 3 A solution is prepared by mixing 30.0 mL of 0.60 M Ba(NO3)2 and 30.0 mL of 0.60 M Ca(NO3)2. Sodium fluoride is added to the mixture. Assume there is no volume change from the addition of sodium fluoride. Which compound precipitates first and at what concentration of F will we first see the precipitate form? Ksp BaF2 = 1.8 x 107 and Ksp CaF2 = 1.5 x 10-10 1. BaF2; 3.6 × 10-3M 2. CaF2; 7.2 10-4 M...
Ksp = [Ba²+][10,1 2. 10. mL of 0.10 M Ba(NO), is mixed with 10. mL of 0.10 M KIO,, a precipitate forms. for barium a. Which ion will still be present at appreciable concentration in the equilibrium mixture if K iodate is very small? b. What would that concentration be? 3. Lead chloride, PbCly, is slightly soluble with K equal to 1.7 x 10. a. What is the solubility of lead chloride in pure water? b. What would the solubility...
Consider the neutralization reaction 2HNO3(aq)+Ba(OH)2(aq)⟶2H2O(l)+Ba(NO3)2(aq) A 0.110 L sample of an unknown HNO3 solution required 38.3 mL of 0.250 M Ba(OH)2 for complete neutralization. What is the concentration of the HNO3 solution?
Consider the neutralization reaction 2HNO3(aq)+Ba(OH)2(aq)⟶2H2O(l)+Ba(NO3)2(aq) A 0.115 L sample of an unknown HNO3 solution required 36.1 mL of 0.150 M Ba(OH)2 for complete neutralization. What is the concentration of the HNO3 solution?
Consider the neutralization reaction 2HNO3(aq)+Ba(OH)2(aq)⟶2H2O(l)+Ba(NO3)2(aq) A 0.120 L sample of an unknown HNO3 solution required 28.5 mL of 0.250 M Ba(OH)2 for complete neutralization. What is the concentration of the HNO3 solution? concentration