(16 points) For Completed Table and Low %error values M Cell Path Length, b (experimental: Beer's Law) Prepared Solution M Constant, (theoretical/ ε (dm³/mol calculated) cm) (cm) AII. Cu(CH3COO)2 2.06 M 5.97 1.0 2 x 10^-5 M BII. KMnO4 2.098 x 103 1.0 Difference in M CI. K2CrO4 0.442 M 277.2 1.0 Percent Error in M
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- Com X Bb Mas X Mas X Hom X K! Kahx Exan X K! Kah X Mitc X КI Kah X K Kah x K! Kah x Kah x K Kahx C session.masteringchemistry.com/myct/itemView?assignmentProblemID=134214560 Apps New Tab Effect of Salinity on... Sleep Disorders | M... P Philo American Journal ... Zeeshan JBAS Ic Wait for Next Quest... oramge juice Effect cWas the gradual color change observed when the sodium thiosulfate (Na2S2O3) crystal was added to the aqueous solution of KI/12 in Station Cevidence of a chemical or physical change?5. If Cv.m (7/2)nR, what is y (where y = CP,m/Cv,m)? = (a) 7/8 (b) 4 (c) 9/7 (d) 7/4Data Mass of unknown metal Cark te ?l.005g Volume of uniknown solotion CmL) Volume of HCI added Inital burct readinglmL) Final buret reading (mL) 20.00ML (mL) 15.00mL 20.SSmL 30.90ML Volume Na OH delivered (m L) Concentration of HCI: O.1708M Concentrahon of NaOH: O.1000M * Pipetted 10.35mL 20.00mL Of solution prepared in 250.0 mL volumetric flask Questions', 1. Calalate the number of moles of Na OH used for back titration? 2. Calculate the number of moles moles of metal carbonate present in 20.00mL portion of the metal Carborate soltion? 3. Calculate molar masS of 3.Calculate in knon metal carbongteA chemist obtained the following data for percent lindane in the triplicate analysis of an insecticide preparation: 7.23, 6.95, and 7.53. Calculate the 95% confidence interval for the mean of the three data, assuming the following criteria. (a) the only information about the precision of the method is the precision for the three data Confidence interval = ± % lindane (b) on the basis of long experience with the method, it is believed that s --> o = 0.26% lindane Confidence interval = ± % lindanePropagate the error in the following expression:(0.5847(±0.0002)mole / 250.0(0.1)??) ×(1000 ml / 1 L)(81310 - 76200) ÷ 0.00216 With Sig FigsDL IXL - Area and circur X E Hamilton w K Maya Paniagua - Sto x K Maya Paniagua - L10 X Stoichiometry Introd x amihq.com/web/viewer.html?state=%7B"ids"%3A%5B"1Jb_fUymErbX45jcXDbRuMhdNQC9zAIBE"%5D%2C*action"%3. Paniagua - Cl. 115% e A Kami Uploads Maya Paniagua - Stoichiometry WS1.pdf Chemistry Stoichiometry WS #1 Show all work!! No work = no credit! Per Date Name Mole to Mole Stoichiometry 1) For the reaction between magnesium fluoride and lead (IV) nitrate, there are 12 mol of magnesium fluoride available: a. Write and balance the chemical equation, indicate the type of reaction b. Find the mole amount of each species in the chemical reaction c. How many moles of the solid precipitate are formed?5. Sketch following: cubic: (111), (01-1) and , Deriu uithSample IdentificationCodeConcentration of M%TA=2-log(%T)Q50004.00 x 10-417.90.75Q50013.20 x 10-425.00.6Q50022.40 x 10-435.70.46Q50031.60 x 10-450.20.3Q50048.000 x 10-570.80.15SampleIdentificationCode%TA=2-log(%T)AMQ0210150143.70.359518560.360.000192Q0210150244.10.355561410.360.00018Q0210150343.80.358525890.360.00017Q0210150444.10.355561410.360.00018Q0210150543.80.358525890.360.00017What was their percent error?43%Does Batch 021015 meet legal requirements?No, because it is not between 2.85 * 10(4) and 3.15 * 10(4)Well #DropsBluedye1234567891012345678910Drops 9Distilled water876543210Concne 0.26tration0.52Test Tube #0.781.041.3Solutions3Concentration (M)2.082.32.6Concentration (ppm)1:1 dilution11.82Starting Dilution21.562:1 dilution0A.Zero standard0Was your calibration curve as linear as you expected?B.Did you experience any “drift†of the resistance readings?C.What is the equation of your best-fit line?D.What commercial drink did you analyze?E.Assuming…05) Determine Assume the soil coefficient (log Koc). factor teem in your molecular structure is given as по Collection The followe : Calculations. Bekow CI Given, log Koc = ос NH2 0.53' x + 0.62 + Σ n; Pj, Where X is the first order molecular connectivity n; is the number of groups of type 'j molecule and Pj Is Collection factor in Index the for each group. (6 marks) [Last question Numericali cant seem to get the right answer for this, could you please explain how i use the constant? like how do i enter it in the calculatorSEE MORE QUESTIONS