77 $2 79 20 15. Calculating standard error of regression $2 First calculate (y) the value of (y) estimated from the regression for each concentration of the standards (x;) 4 using the regression equation we have now established: $5 * Vi = $7 89 90 Ут 91 Y2 92 Y3 93 YA 94 Ys 95 Y6 96 97 98 99 100 101 6. Uncertainly in the estimate of concentration 102 102 ICIL Immoll individual result(Requ STEP 1 yi (y = a + bx) 0.000 + STEP 6 Now determine S y/x STEP 2 (Yi - ŷi) STEP 4 (SUM) STEP 5 (df) (GIVEN) STEP 3 (Yi - yi)² 0.000 x Sy/x= 4 5 16 17 18 Хь X 19 3. Coefficients for the Standard Curve 0.871 57 Yb 4.446 3 y 20 21 22 STEP 1 (x₁-x) 370.5 (y1 - y) 5.240 23 (x2-x) 142.5 (y2 - y) 2.004 24 (x3 - x) 28.5 (Y3-ŷ) 0.390 25 (x-x) -85.5 (Y4- y) -1.231 75 26 (x5 - x) -199.5 (ys - y) -2.829 27 (x-x) -256.5 (y- y) -3.575 28

77 $2 79 20 15. Calculating standard error of regression $2 First calculate (y) the value of (y) estimated from the regression for each concentration of the standards (x;) 4 using the regression equation we have now established: $5 * Vi = $7 89 90 Ут 91 Y2 92 Y3 93 YA 94 Ys 95 Y6 96 97 98 99 100 101 6. Uncertainly in the estimate of concentration 102 102 ICIL Immoll individual result(Requ STEP 1 yi (y = a + bx) 0.000 + STEP 6 Now determine S y/x STEP 2 (Yi - ŷi) STEP 4 (SUM) STEP 5 (df) (GIVEN) STEP 3 (Yi - yi)² 0.000 x Sy/x= 4 5 16 17 18 Хь X 19 3. Coefficients for the Standard Curve 0.871 57 Yb 4.446 3 y 20 21 22 STEP 1 (x₁-x) 370.5 (y1 - y) 5.240 23 (x2-x) 142.5 (y2 - y) 2.004 24 (x3 - x) 28.5 (Y3-ŷ) 0.390 25 (x-x) -85.5 (Y4- y) -1.231 75 26 (x5 - x) -199.5 (ys - y) -2.829 27 (x-x) -256.5 (y- y) -3.575 28

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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