QUESTION 16Match the correct choices with the given.For gravimetric analysis, use this data to answer the questions.Trial 1Trial 2Trial 30.6020 g24.8405 g0.5021 g22.8165 g0.5018 g22.8169 g22.8169 gWeight of SampleWeight of Crucible and BaSo424.845122.8165 g24.8422 g24.8422 gConstant Weight of Crucible &Sample24.8422 g22.8165 g22.8169 g22.3593 g22.3523 g22.3534 g22.3641 g22.3612 g22.3605 gWeight of Crucible24.3181 g24.3160 g24.3142 g24.3142 g24.3142 g22.3532 g22.3605 g22.3605 g22.3605 g22.3532 gConstant Weight of Crucible24.3142 g22.3532 gWeight of BaSo,% so,²-AverageStandard deviationRelative standard deviationA. 2.65Average of the % (w/w) SO42-B. to decompose the solid and form acompound of known composition and toremove the solvent and any non-volatilespeciesStandard deviation of the % (w/w)SO42-Relative standard deviation of theC. reprecipitation% (w/w) SO42-D. formation of small crystalsThis is a drastic but effective wayto minimize the effects ofadsorbed impuritiesE. 90.31 % (w/w)F. 2.12G. for its mass to be lower and performThe possible reasons for theignition of gravimetric precipitatepost-precipitationareH. 1.92Dropwise addition of theprecipitating agents leads toI. formation of large crystals

Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Match the correct choices with the given. For gravimetric analysis, use this data to answer the questions. Trial 1 0.6020 g 24.8405 g 24.8451 g 24.8422 g 24.8422 g Trial 3 0.5018 g 22.8169 g 22.8169 g Trial 2 0.5021 g Weight of Sample Weight of Crucible and Ba$O, 22.8165 g 22.8165 g Constant Weight of Crucible & Sample 24.8422 g 22.8165 g 22.8169 g

Match the correct choices with the given. For gravimetric analysis, use this data to answer the questions. Trial 1 0.6020 g 24.8405 g 24.8451 g 24.8422 g 24.8422 g Trial 3 0.5018 g 22.8169 g 22.8169 g Trial 2 0.5021 g Weight of Sample Weight of Crucible and Ba$O, 22.8165 g 22.8165 g Constant Weight of Crucible & Sample 24.8422 g 22.8165 g 22.8169 g

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

The gravimetric factor used to express CoCBr6·H20 in a sample that is finally weighed as PbClBr is choose below: FW PbClBr / 6 x FW CoCBr6·H20 FW CoCBr6·H20 / FW PbClBr FW CoCBr6·H20 / 6 x FW PbClBr 6 x FW PbClBr / FW CoCBr6·H20
Density of solution:Trial 1: 1.2 g/mLTrial 2: 1.2 g/mLTrial 3: 1.2 g/mL Average density = 1.2 g/mL What is the relative average deviaion, %?
Table 8.7 (data) HCI plug location 10 NH3 plug location 60 Deposit location 32 Table 8.8 (report) HCI Mol. weight NH3 Mol. weight HCI Diff. distance NH3 Diff. distance Rate ratio (exp.) Rate ratio (theor.) https://youtu.be/23hobwUe7-M Lab video
Standardization of Sodium Thiosulfate Solution Primary Standard used: Potassium Dichromate Formula mass of 1o standard: __________________ % Purity of 1o standard: 99.80% Trials 1 2 3 Weight of K2Cr2O7 (g)Weight of K2Cr2O7 (g) 0.0315 0.0331 0.0380 Final Volume Reading Na2S2O3 (ml) 27.50 27.50 34.90 Initial Volume Reading Na2S2O3 (ml) 1.10 0.00 1.00 Net Volume Na2S2O3 used (ml) Molarity of Na2S2O3
SALT SOLUTION: Trial 1: Volume: 25 mLMass of 25mL solution: 29.824 gDensity: 1.2 g/mL Trial 2:Volume: 25 mLMass of 25 mL solution: 29.855 gDensity: 1.2 g/mL Trial 3:Volume: 25 mLMass of 25 mL solution: 29.816 gDensity: 1.2 g/mL METAL BAR: Method I - Trial 1:Mass of metal bar: 57.063 gVolume of metal bar: 6.7 cm^3Density of bar: 8.5 g/cm^3 Trial 2:Mass of metal bar: 57.063 gVolume of metal bar: 6.0 cm^3Density of bar: 9.5 g/cm^3 Trial 3:Mass of metal bar: 57.063 gVolume of metal bar: 6.0 cm^3Density of bar: 9.5 g/cm^3 Method 2 - Trial 1:Dimensions: diameter = 1.20 cm, height = 4.91 cmMass of metal bar: 57.063 gVolume of metal bar: 5.55 cm^3Density of bar: 10.3 g/cm^3 Trial 2:Dimensions: diameter = 1.20 cm, height = 4.95 cmMass of metal bar: 57.063 gVolume of metal bar: 5.60 cm^3Density of bar: 10.2 g/cm^3 Trial 3:Dimensions: diameter = 1.20 cm, height = 4.95 cmMass of metal bar: 57.063 gVolume of metal bar: 5.60 cm^3Density of bar: 10.2 g/cm^3 QUESTION - From your data, calculate the…
idea how gravimetric analysis provides accurate results despite of it being time consuming
Calculate the Constant Weight (in grams) of the Empty Crucibles. Show your solution. Crucible No. 1 2 3 Weighing 1 22.6035 22.0223 24.1535 Weighing 2 22.6017 22.0204 24.1533 Weighing 3 22.5994 22.0199 - Weighing 4 22.5992 - - Constant Weight, g ??? ??? ???
Data of milk: (first trial) Mass of milk: 104.4579g Concentration of NaOH (M): 0.09639 Volume of NaOH solution used: 5.5 mL Data of milk: (2nd trial) Mass of milk: 103.8405g Concentration of NaOH (M): 0.09639 Volume of NaOH solution used: 5.3 mL
4. A fat sample with combination of acids contain standard hydrochloric acid for blank and sample with 8mL and 5mL respectively. The normality of the standard hydrochloric acid is 0.93N and the weight of the sample is 3 grams. Calculate the saponification value.
I would need help with these questions. The method referenced above was followed by a student and she got the following results: Caffeine Std. Conc. (ppm) Absorbance 100 1.806 50 0.899 40 0.724 30 0.545 20 0.365 10 0.183 Further, she analyzed an unknown sample and she got the following results: Sample # Absorbance 1 0.398 1. Graphically find the concentration in ppm and then calculate in mol/L of Caffeine in Sample #1? 2. Which solvent was used to extract Caffeine and why? Why is it necessary to do extraction three times? 3. Cuvettes used in this experiment were made from which material and why? 4. At what wavelength the Absorbance was measured?
Trial one Trial two KIO3 solution taken (mL) 1.70 16.5 Moles of KIO3 1.06 x 10^-3 1.06 x 10^-3 Final buret reading (mL) 17.0 33.5 Initial buret reading 0 17.0 Volume of Na2S2O3 solution (mL) 17.0 16.5 Molarity of Na2S2O3 solution (MOL/L) 0.374 0.389 MEAN molarity (mol/L) 0.382 Filtrate Trail one Trail two Final buret reading (mL) 24.0 47.9 Initial buret reading (mL) 0 24.0 Volume of Na2S2O3 solution (mL) 24.0 23.9 Moles of Na2S2O3 used 0.00917 0.00913 Moles if IO3^- present initially 7.05 x 10^-4 7.02 x 10^-4 Molarity of IO3^- (mol/L) 3.53 x 10^-2 3.51 x 10^-2 Average 1.7 x 10^-4 1a. Calculate the solubility of Ca(IO3)2 from your results with the first and second filtrates 1c. Calculate Ksp for Ca(IO3)2 using the mean solubilitity
Table of caffeine standards concentration . Sample Conc, ppm Std1 16 Std2 32 Std3 48 Std4 64 Std5 80 If the volume used to make 100 mL of std 1 is 2 uL what is the concentration in M used to make std calibration curve ? The standards are going to be used to build calibration curve to analyze caffeine in an energy drink. if 500 mL of the energy drink has target of 400 mg , how will you prepare the sample if you need 10 mL for the analysis ? Caffeine MM=194.19 g/mol.