solution A iron (III) nitrate lead(II) nitrate potassium sulfide solution B potassium hydroxide potassium chloride copper(II) nitrate Does a precipitate form when A and B are mixed? yes yes yes no no no empirical formula of precipitate
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- 0.890 g KIO3 was dissolved to give a 80.00 mL Iodate solution. 35.00 mL aliquot reactedwith the iodide to form triiodide. The liberated triiodide was titrated and consumed 11.65 mL of theS2O32- solution to reach endpoint. Calculate the concentration in molarity of the Na2S2O3solution.In the gravimetric determination of sulfate in a 0.5613 g sample of pure NazSO4, a BaSO. precipitate weighing 0.4309 g was obtained. The weight of the precipitate was smaller than the theoretical one. since some BaSO& was converted to Bas during the heating process. (a) Calculate the percent of Bas in the precipitate (Hint: best to solve algebraically) (b) Calculate the percent error of the analysis (Hint: compare calculated with weight stated in problem).6) In 45 mL of 0.35 N of K2Cr:O, No. of equvaients is ..... Eq. No. of milliequivalents meq.
- The concentration of CO in air is determined by passing a known volume of air through a tube that contains I2O5, forming CO2and I2. The I2 is removed from the tube by distilling it into a solution that contains an excess of KI, producing I3-. The I3-is titrated with a standard solution of Na2S2O3. In a typical analysis a 4.79-L sample of air is sampled as described here, requiring 7.17 mL of 0.00329 M Na2S2O3 to reach the end point. If the air has a density of 1.23 × 10–3 g/mL, determine the parts per million CO in the airDATE TA ne Tru Fr. Sat Sun. Table Resuits of roubility tests for C4Hio O Solubility Test + / - - observations 1. distilled water cle ar, lolor less sol'n 2.. litmuS paper tes + no change in either red or blue litmus paper write writif Lompound.is soluble/imiscible in Write rolvent. IF n ot.,Name: NetID: 1. Determine the molar solubility (in M to two decimal places) of solid cobalt(II) hydroxide = 5.92 x 10-15) when dissolved in: 2pl Yozlows bus on (Ksp (a) water (at 25 °C) sead (b) an aqueous solution containing 0.1 M NaOH (at 25 °C) A: 1.14×10-5 A: 5.92×10-13
- Praterancan Use the References to access important values if needed for this question When 15.0 ml. of a 7.26 x 10 M manganese(II) iodide solution is combined with 18.0 mL of a 7:18 x 10 M sodium carbonate solution does a precipitate form? (K (MnCO₂) 1.8 x 10-) OYes, the precipitate forms. ONo, the Drecipitate doesn't form. For these conditions the Reaction Quotient, Q, is equal to Show Transcribed Text Ĉ Use the References to access important values if needed for this question When 12.0 mL of a 2.24 x 10 Miron(III) sulfate solution is combined with 15.0 mL of a 5.38 x 10 M ammonium sulfide solution does a precipitate forms? (K (FejSs)-1.4 x 10) OYes, the precipitate forms. ONo, the precipitate doesn't form for these conditions the Reaction Quotient, Q, is equal to Show Transcribed Text part a and part bWhat is the percentage purity a sample of (A12S04)3 if a 0.5000 g sample producted a precipitate of BaSO4 weighting 0.1000 gCalculate the hinal Concentaton of k' lag), CoO¢ (aq), Ba"cq prepared by addig o.100L of to 0.150L of 0.250 M Ba Bra 2t nd br aq) in a soluteon 0.200 M KCO, ( for ba Ca Qu , K, = , Ksp 2.3x108)
- 136 mL of 0.00015 M Pb(NO3)2 and 234 mL of 0.00028 M Na2SO4 (volumes are additive). Will a percipitate form? Hint: each solution dilutes the other upon mixing.Salt (X) When conc. H2SO, is added to unknown solid salt with heating, an orange red fumes will be separated turns a paper wet with starch yellow, and when ammonium hydroxide solution added to solution of this salt a white gelatinous ppt. is formed which soluble in dil. Acids, Salt (X) represents............. a) Aluminum bromide b) Aluminum iodide c) Iron II bromide d) Potassium iodideWhen a 100.0-mL portion of a solution containing 0.500 g of AgNO3 is mixed with 100.0 mL of a solution containing 0.300 g of K2CrO4, a bright red precipitate of Ag2CrO4 forms. (a) Assuming that the solubility of Ag2CrO, is negligible, calculate the mass of the precipitate. Ans. The limiting reagent is the mass of the precipitate is g. (b) Calculate the mass of the unreacted component that remains in solution. Ans. The mass of the unreacted component is