Please help with question 3 Chem 105-OnlineDATA TABLEMass of test tubeMass of test tube & metalMass of metalMass of calorimeterMass of calorimeter & waterMass of waterTemp of boiling water (metal)Temperature of water in foam cupHighest temp (after metal added)Change in water temperature(ATW)Change in metal temperature(ATM)Trial 119.34g38.14g18.893.81951.749247.9x4-184[37°C47.99206°F 98°C72.5°F 23°80 of26°C3°C-72°CTrial 219.20g37.95g18.75g4.26g49.30945.04g१८००72.5° 23°C27%Trial 2:9-MCS A TwPost-lab Calculations:1. Calculate the specific heat, for both trials, by setting heat gained by the water(qw) = to heat lost by the metal (am).Trial 1: qw-mwCS ATW,4°C۹۰۰ ما - -2.45.04x4.184 x 4°c=753.79J9w:-9m=753.79J9M-Mm Cs ATmc=601.2459w=-9m=601.24⁰am=ms (s(-12) (5=0.4445/9°C -753.79 J-16.75g Cs (-69) (Cg=0.5833/9°CAverage specific heat of the trials:2. Calculate your percent error with the accepted value for the specific heatbeing of 0.5024J/gºC.Qwader = Mwater x Swater x (Tf-T:)47.9x 4.184 x (26-23)Cmetal Metal xSmetalx (Ti-Tf)= 18.8 x 5metal x (98-26)@metal: QwaterQuater: 45.04x4.184 x(27-23)&meta=18.78x Smetal x(96-27)@metal-Qwater%error: (as134-0.50240.502418.75 x5 metal (96-27):45.04x4.184x(27-23)18.75x5metal x69=45.04x4.184x4Smetal x129375-753.7918.8x5metal x (98-26)=47.9x4-184x (26-23) Smetal = 753.79 1/9-c18.8 x ³metal x 72=479x4.184x3Smetal x 1353-6=601.2408metal=0.5835/gfc1293.75Smetal = 6012.4083/g.cSmetal 20.442 5/9--°C% error -0.011Saug 20.4442 +0.58263/g-0.51343/9-c0.5ozy 1000.5024 = 2.19%Posl3. ChemPost Lab QuestionsGiven thataccuracy is how close values are to an accepted value andprecision refers to reproducibility, comment on the accuracy and precision ofyour experiment. Predict causes the errors with in the experiment? (Do NOTstate human error.)C3.4. Suppose you took the test tube out of the boiling water bath for ~30 seconds asyou forgot to take the initial temperature of the water in the calorimeter. Howwould your specific heat calculation be affected for your metal? How do youknow? (Be specific, do not simply state the value would be "different", "off" or"incorrect".)5. Suppose a student took the test tube of metal and placed it directly into the cupof water instead of actually pouring the metal in the cup. How would thisimpact the results of the experiment? (Be specific, do not simply state the valuewould be "different", "off" or "incorrect". Hint, think of what else is being addedto the calorimeter).

The question is based on the concepts of experimental Chemistry . We have to describe precision and…

Chem Post Lab Questions 3. Given that accuracy is how close values are to an accepted value and precision refers to reproducibility, comment on the accuracy and precision of your experiment. Predict causes the errors with in the experiment? (Do NOT state human error.)

Chem Post Lab Questions 3. Given that accuracy is how close values are to an accepted value and precision refers to reproducibility, comment on the accuracy and precision of your experiment. Predict causes the errors with in the experiment? (Do NOT state human error.)

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section4.8: Measuring Reaction Enthalpies: Calorimetry

Problem 4.9PSP

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