Desk Name Date Lahoratory Instructor Unknown nn, or letter EXPERIMENT REPORT SHEET Gravimetric Analysis 6. 5%. of a Chloride Salt Trial 3 O.46 8 0.82 0.25 Trial I Trial 2 D.498 O. 84 0.25 O SS g 0.96 O.25 Mass of sample Mass of filter paper + AgCI Mass of filter paper Mass of AgCI Mass of Cl in original sample (show calculations) Percent chloride in original mPle (show calculations) Average percent chloride (show calculations) Standard deviation (show calculations) Relative standard deviation expressed as a percent (show calculations) Do any of your results differ from the mean by more than two standard deviations? Reported percent chloride Copyriyht C 20I8 Pearson I du atun, Inc

Desk Name Date Lahoratory Instructor Unknown nn, or letter EXPERIMENT REPORT SHEET Gravimetric Analysis 6. 5%. of a Chloride Salt Trial 3 O.46 8 0.82 0.25 Trial I Trial 2 D.498 O. 84 0.25 O SS g 0.96 O.25 Mass of sample Mass of filter paper + AgCI Mass of filter paper Mass of AgCI Mass of Cl in original sample (show calculations) Percent chloride in original mPle (show calculations) Average percent chloride (show calculations) Standard deviation (show calculations) Relative standard deviation expressed as a percent (show calculations) Do any of your results differ from the mean by more than two standard deviations? Reported percent chloride Copyriyht C 20I8 Pearson I du atun, Inc

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter8: Sampling, Standardization, And Calibration

Section: Chapter Questions

Problem 8.14QAP

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In the standardi zation of HCl using pure anhydrou s sodium carbonate as primarystandard for methy l orange as indica tor , 1.0 mL HCl was found to be equiva lent to 0.05gof sodium carbonate (MW =106). The no rmality of HCl is
2. In one gravimetric analysis, the aluminum in a 1.2g sample of impure NHAI(SO4)2 was precipitate as hydrous ALO3.XH2O. The precipitate was filtered and ignited at 1000 °C to give anhydrous Al2O3 which weighed 0.1798g. Calculate the % Al inthe sample. 3. A sample of 0.4500g impure potassium chloride was dissolved in water treated with excess silver nitrate solution. 0.8402 g of silver chloride was precipitated. What is the percentage of potassium chloride in the sample?
Caluulate he DH of a solution containing 0.784m NHz and 1.332m NH4N02- kn for Nitsis 1.76X105
prod STABILO EAS (0) ev qien se come an enll riquor AigW Vinumiabs onlinenetow eeu of riding to eve g1-1 The concentration of Salt is 252 2 • There is a muxbure of Salts in the water leg) Na (1₂), bub assume a weighted average sowice Мавше relabure molecular mass of the Salt mixture of 85.40, Express the concentration of Dead Sea Salb in moles p males per u pen.ac.uk/mod/ou content/view.php?id=1858530§ion=4 Lione 18/05/2022, 14:15 Page 2 of 2
BC Broward Col x O Onelogin xe Expt. 6 pre-l xA "Expt. 7 Quiz X G .What is an x b ziprecruiter x O 12.628+ Par X E Login x + O File | C/Users/nerbs/Downloads/Expt.%207%20Quiz,%20Part%201.pdf 10 2) If absorptivity (the constant of how much light of a given wavelength the sample absorbs) and path length (how much solution there is for light to pass through) are the same, which is true for a Beer's Law solution? a) its concentration and absorbance are proportional b) its concentration and rate are proportional c) its absorbance and rate are proportional d) the solution is an alcoholic beverage
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Show complete solutians for eoch problem. A dcientiet from tasked to exthact Fe suspensionthat contains 10e g of Fez0s. The was an steps detail the transformation of Fez Os ag) te elemental iron. I. Enough sulfur trioxide bubbled _to FezO3_aguour gasuas Mar suspension I Then, 5.00 M nitrict acid to completely yield fernie sulfate . was added to ferrie sulfate yielding aguour solution of feuie nitrate. I Evess magnesium posder. was addedtothe solution of feuic nitrate precipitating aqueous the solid iron. A. Waite the balanced chemical reaction chermical reaction for (I),(I). (Im. De nat forget de indicate the states of the reactantsand products (s,1.g) B.) What is mass of the iron ? Expess the answer in 3 Mgnificant figures c) High concentution HCl the last part of the procedune. Briefly state its and the type of the final . it suppered to be added at pupere. CS Scanned with CamScanner
Tonight to J 005.0 of babbs al DHM AE0.0 to Im 00.E nariw afluze nolautors to (6 points) 0.1 mole of CH3NH2 (Kb = 5 x 10") is mixed with 0.08 mole of HCI and diluted to 1L. What will be the H* concentration? OH= CH3NH2 + H CH3NH3* H