Quantitative Chemical Analysis 10th Edition Daniel C. Harris, Charles A. Lucy - Solutions

Students measured the concentration of HС1HС1 in a solution by titrating with different indicators to find the end point.Is the difference between indicators A and B significant at the 95%95% confidence level? Answer the same question for indicators B and C. Indicator A. Bromothymol blue B.
Big Data. Modern analyses can generate thousands of data points. This problem introduces techniques for handling larger data sets. A spreadsheet with the data can be found on SaplingPlus or at macmillanlearning.com. Students at the University of Sydney each determined the molecular mass of one of
Calculate the mean and standard deviations for the following replicate readings of a buret (mL): 32.56,32.56, 32.53, 32.53, 32.54,32.54, 32.77,32.77, and 32.54.32.54. Consider what to do with any outlier.
State five methods to determine if calibration data are linear or curved. Rank the methods on their ability to determine if a linear calibration is fit for purpose.
Standard methods. Search the Internet for the requested information about the following standard methods.a. What analyte and in what matrix is U.S. Environmental Protection Agency method 200.7 200.7 designed to analyze?b. What ASTM method is for analysis of chemical warfare agents such as isopropyl
Standard addition. The U.S. Environmental Protection Agency sets guidelines for the level of contaminants in drinking water below which no adverse health effects are likely to occur. The limit for thallium is 0.5 μg/L0.5 μg/L.Thallium (Tl+)(Tl+) was measured using anodic stripping voltammetry, a
For the reaction HCO3-⇌H++CO32-,HCO-3 ⇌ H- + CO32-, ΔG°=+59.0 kJ/molΔG° = +59.0 kJ /mol at 298.15 K. 298.15 K. Find the value of KK for the reaction.
Find the concentration of Cu+Cu+ in equilibrium with CuBr(s)CuBr(s) and 0.10 M Br-0.10 M Br -.
Suppose that you precipitate Hg22+Hg22+from a solution containing 0.01 M Hg2(NO3)20.01 M Hg2(NO3)2and 0.01 M Pb(NO3)20.01M Pb(NO3)2 by adding I-l- . If you want to know whether a small amount of Pb2+Pb2+ coprecipitates with Hg2I2,Hg2I2 should you measure PbPb in the mother liquor (the solution) or
Calculate [H+] [H+] and pHpH for the following solutions:a. 0.010 M HNO3 0.010 M HNO3b. 0.035 M KOH 0.035 M KOHc. 0.030 m HCl 0.030 M HCld. 3.0 M HCl 3.0 M HCle. 0.010 M[(CH3)4N+]OH-Tetramethylammonium hydroxide 0.010 M [(CH3)4 N+]OH- Tetramethylammonium hydroxide
The equilibrium constant for the reaction H2O⇌ H++OH-H2 O ⇌ H+ + OH- is 1.0x10-14 1.0x10-14 at 25°C 25°C. What is the value of KK for the reaction 4H2O⇌4H++4OH-? 4H2 O ⇌ 4H+ + 4OH- ?
Write the KbKb reaction of CN-CN- Given that the KaKa , value for HCNHCN is 6.2x10-10, 6.2x10-10 calculate KbKb for CN-CN-.
Examine the procedure in Table 7-1 for the Fajans titration of Zn2+.Zn2+. Do you expect the charge on the precipitate to be positive or negative after the equivalence point?Table 7-1 TABLE 7-1 Applications of precipitation titrations Species analyzed Br-, I-, SCN-, CNO-, AsO43-, Br, I, SCN, CNO,
What is wrong with this procedure? According to Table 7-1, carbonate can be measured by a Volhard titration. Removal of the precipitate is required. To analyze an unknown solution of Na2CO3,Na2CO3, I acidified the solution with freshly boiled and cooled HNO3 HNO3 to give ~0.5 M HNO3. ~0.5 M HNO3

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