Hi, can you check my math? Can percent error be negative, if so what does that mean and how do I explain that for my results? These are calculations for Determining the ksp of Calcium Hydroxide Lab. Thanks! 0.035x10-molM of Ca2+0.012M2.92x10-3L0.07x10-3molCalculated Ksp0.069x1030.063x10-30.053x103M of OH-0.024M2.92x10-3LKsp = (0.012)(0.024)(0.024)0.069x10 3+0.063x103+0.053x10/3Average Ksp1.85x104=1.85x104Percent Error*5.5 x 10-6 – 1.85 × 10-4-97.02%x 100on Ksp1.85 x 10-4Consider that the actual value is 5.50 x 10 -6.

% error can never be negative as it is the mode value i.e., negative is not considered. %…

0.035x10-mol M of Ca2+. 0.012M 2.92x10-3L 0.07x10-mol Calculated Ksp 0.069x103 0.063x103 0.053x103 M of OH- 0.024M %3D 2.92x10-3L Ksp = (0.012)(0.024)(0.024) 0.069x103+0.063x103+0.053x10/3 =1.85x104 Average Ksp 1.85x104 Percent Error* 5.5 x 10-6 – 1.85 x 10-4 -97.02% x 100 on Ksp 1.85 x 10-4 • Consider that the actual value is 5.50 x 10 -6.

0.035x10-mol M of Ca2+. 0.012M 2.92x10-3L 0.07x10-mol Calculated Ksp 0.069x103 0.063x103 0.053x103 M of OH- 0.024M %3D 2.92x10-3L Ksp = (0.012)(0.024)(0.024) 0.069x103+0.063x103+0.053x10/3 =1.85x104 Average Ksp 1.85x104 Percent Error* 5.5 x 10-6 – 1.85 x 10-4 -97.02% x 100 on Ksp 1.85 x 10-4 • Consider that the actual value is 5.50 x 10 -6.

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter5: Gases

Section: Chapter Questions

Problem 5.23PAE

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