Grain detection 0.8 Peak To Valley Histogram 2.5 unit/div 30 10 20 30 nm Peak to Valley Zoum: 100% 48 12 I nm D3 40 30 20 10 0 VY 0.4 0.8 1.2 1.6 μη Zoom: 100% +x - I DE Line Profile: Red nm 30 20 10 - 224 1:1 Angle (deg): I 0 0 0.4 0.8 1.2 1.6 2 μm Cursor Red AX(μm) 0.047 AY(nm) 18.405 Angle(deg) 21.437 Power Spectrum: Red - 224 μm³ 1.6E-5 1.2E-5 8E-6 4E-6 0 что 0 20 40 60 1/μm

Grain detection 0.8 Peak To Valley Histogram 2.5 unit/div 30 10 20 30 nm Peak to Valley Zoum: 100% 48 12 I nm D3 40 30 20 10 0 VY 0.4 0.8 1.2 1.6 μη Zoom: 100% +x - I DE Line Profile: Red nm 30 20 10 - 224 1:1 Angle (deg): I 0 0 0.4 0.8 1.2 1.6 2 μm Cursor Red AX(μm) 0.047 AY(nm) 18.405 Angle(deg) 21.437 Power Spectrum: Red - 224 μm³ 1.6E-5 1.2E-5 8E-6 4E-6 0 что 0 20 40 60 1/μm

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter8: Sampling, Standardization, And Calibration

Section: Chapter Questions

Problem 8.12QAP

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A titrimetric method for the determination of calcium in limestone was tested by analysis of an NIST limestone containing 30.15% CaO. The mean result of four analyses was 30.26% CaO, with a standard deviation of 0.085%. By pooling data from several analyses, it was established that s   = 0.094% CaO.a. Do the data indicate the presence of a systematic error at the 95% confidence level?b. Do the data indicate the presence of systematic error at the 95% confidence level if no pooled value for s was available?
Sample 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 â€œdriftâ€ of the resistance readings?C.What is the equation of your best-fit line?D.What commercial drink did you analyze?E.Assuming…
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