How did Thomson determine that the electrons have a negative charge?Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Research XExam IFilesE Researc ×Researc Xresearch XG eating ha x * (6 Cups) xDashboa X G How did xCourse XAnswere Xopenvellum.ecollege.com/course.html?courseld=16519516&OpenVellumHMAC=dd858c9d539b66cab24f29b43e709ac5#10001AppsYahoo MailYouTubeМapsBest Free PowerP...Google DriveAcademic Search+ DownloadsUniversity Librarie...E UNIVERSITY POR...Student Detail Sc..>>I Review | Constants I Periodic TableScoreseТextPart ADocument SharingHow did Thomson determine that the electrons have a negative charge?Drag the terms on the left to the appropriate blanks on the right to complete the sentences.User SettingsCourse Tools<>Reset|Helpa cathodeThomson determined that electrons have acharge when he observed that they werenegativeattracted to theelectrode inray tube.an anodepositiveSubmitRequest AnswerProvide FeedbackNext >P PearsonCopyright © 2021 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy. | Permissions | Contact Us |

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Researc X 9 Exam I * Files E Researc x Researc X research x G eating h x * (6 Cups) x 9 Dashboa x G How didx Course b Answere x + A openvellum.ecollege.com/course.html?courseld=16519516&OpenVellumHMAC=dd858c9d539b66cab24f29b43e709ac5#10001 E Apps 9 Yahoo Mail YouTube O Maps N Best Free PowerP.. 4 Google Drive * Downloads E University Librarie. E UNIVERSITY POR. Academic Search Student Detail Sc. I Review I Constants I Periodic Table Scores eText Part A Document Sharing How did Thomson determine that the electrons have a negative charge? Drag the terms on the left to the appropriate blanks on the right to complete the sentences. User Settings Course Tools > Reset Help Thomson determined that electrons have a a cathode charge when he observed that they were negative attracted to the ray tube. electrode in an anode positive Submit Request Answer Provide Feedback Next > P Pearson Copyright © 2021 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy I Permissions | Contact Us |

Researc X 9 Exam I * Files E Researc x Researc X research x G eating h x * (6 Cups) x 9 Dashboa x G How didx Course b Answere x + A openvellum.ecollege.com/course.html?courseld=16519516&OpenVellumHMAC=dd858c9d539b66cab24f29b43e709ac5#10001 E Apps 9 Yahoo Mail YouTube O Maps N Best Free PowerP.. 4 Google Drive * Downloads E University Librarie. E UNIVERSITY POR. Academic Search Student Detail Sc. I Review I Constants I Periodic Table Scores eText Part A Document Sharing How did Thomson determine that the electrons have a negative charge? Drag the terms on the left to the appropriate blanks on the right to complete the sentences. User Settings Course Tools > Reset Help Thomson determined that electrons have a a cathode charge when he observed that they were negative attracted to the ray tube. electrode in an anode positive Submit Request Answer Provide Feedback Next > P Pearson Copyright © 2021 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy I Permissions | Contact Us |

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.16QAP

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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.
Nunber 2, 3 and 4 please 2. NaOH is commonly used to produce paper, dyes and soap. Calculate the mole fraction of NaOH in a solution containing 780 g of NaOH that was dissolved in 3.00 kg of water. The MM of NaOH is 40.0 g/ml. 3. A solution was made by dissolving 700 g of Na2SO4 in 0.5 kg of H2O. Calculate the mole fraction of Na2SO4. The molar mass of Na2SO4 is 142.05 g/mol. 4. Mrs. Alvarez assigned you to prepare a solution of 2.44 molal H2SO4 solution. What mass of H2SO4 in grams, you must be dissolved to .180 kg H2O to produce the desired molal solution? MM of H2SO4 is 98.8 g/mol
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In a solution containing 25ml (NH4)2S2O8 with a total volume = 100 ml =0.1 liters , the solution composition are shown below.Note; the solution require 25ml of 0.2M S2O8^-2.SOLUTION Kl KNO3 EDTA Na2S2O3 STARCH50ml 23ml 1 drop 1 ml 10 dropsExperiment; initial (S2O8-2) =0.05M ; INITIAL (l-)=0.10 Mml of S2O3^-2 added Time in minutes and seconds for color change Cumulative time in seconds Total moles of S2O8^-2 consumed1 1:43 2.0 x 10^-42 1:20 4.0 x 10^-43 1:13 6.0 x 10 ^-44 1.17 8.0 x 10 ^-45 1.24 10 x 10 ^-41a) Find the cumulative time in secondsb) for the runs ,plot mole of S2O8^2- REACTION vs. time in seconds2) Draw a straight line through ( origin ) the points and calculate the slope3) divide the value of the slope by the total volume of ( 0.1 L) to get the rate in units of M/s4) find the rate5 )calculate x and y and k
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A core sample is saturated with an oil (?o = 35oAPI), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (?w = 1 g/cm3 ), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm3 water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.
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