You are preseted with a whitesid andteldthar due tecareless labelingwat dear ithe subatances Dack. AgCl, or NgCls When you transfer the sulidto a besker and add water, the slid diate an racear soluane Next awte e molecta ti eeonic quation, and t-anie

(a) In the given white solid , out of BaCl2 , AgCl and MgCl2 may be present. When this solid…

You are prested with a white sid andtelethar due te.careless labeling wat dear ihe substance Dacl, AgCl, or NuCh When you transfer the sulid to a besker and add water, the slid diate an acear soluane Next a What is the entityef the snknewnwhtesoli xalnia c.ST, wte e molecta ti eeonic qation, andet-anie

You are prested with a white sid andtelethar due te.careless labeling wat dear ihe substance Dacl, AgCl, or NuCh When you transfer the sulid to a besker and add water, the slid diate an acear soluane Next a What is the entityef the snknewnwhtesoli xalnia c.ST, wte e molecta ti eeonic qation, andet-anie

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 39P

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The concentration of CO in the air can be determined by passing a known volume of air through a tube containing I2O5, resulting in the formation of CO2 and I2. I2 is removed from the tube by distillation and collected in a solution containing excess KI, producing I3-. I3- is titrated with a standard solution of Na2S2O3. A 4.79 L air sample was sampled as described here, requiring 7.17 ml of 0.00329 M Na2S2O3 to reach the endpoint in a typical analysis. If the density of the air is 1.23×10^-3 g/ml, what is the amount of CO in the air in ppm? (CO: 28 g/ml)
The following reaction occurs in basic solution: F2 + H2O ® O2 + F-When the equation is balanced, the sum of the coefficients is:
The following reactions (note that the arrows are pointingonly one direction) can be used to prepare an activity seriesfor the halogens:Br2(aq) + 2 NaI(aq)----->2 NaBr(aq) + I2(aq)Cl2(aq) + 2 NaBr(aq)----->2 NaCl(aq) + Br2(aq)(a) Which elemental halogen would you predict is the moststable, upon mixing with other halides? (b) Predict whethera reaction will occur when elemental chlorine and potassiumiodide are mixed. (c) Predict whether a reaction will occurwhen elemental bromine and lithium chloride are mixed.
The arsenic in a 1.22-g sample of a pesticide was converted toAsO43- by suitable chemical treatment. It was then titratedusing Ag+ to form Ag3AsO4 as a precipitate. (a) What is theoxidation state of As in AsO43-? (b) Name Ag3AsO4 by analogyto the corresponding compound containing phosphorusin place of arsenic. (c) If it took 25.0 mL of 0.102 M Ag+to reach the equivalence point in this titration, what is themass percentage of arsenic in the pesticide?
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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 air
25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20 mL solution taken from here, and the released I2 is titrated with 35.5 mL of 0.0409 M NaS2O3. Accordingly, calculate the weight percent by volume of NaOCl in the sample.(MaNaOC:74,4 g/mol)