Which statement is false? Select one: O a. The instrument must be calibrated every time the wavelength is changed. O b. The "control" should be everything in the sample except the substance being measured. O c. The sample door can be left open when taking measurements. O d. The outside of the cuvette should be wiped clean before placing it in the spectrophotometer.

Which statement is false? Select one: O a. The instrument must be calibrated every time the wavelength is changed. O b. The "control" should be everything in the sample except the substance being measured. O c. The sample door can be left open when taking measurements. O d. The outside of the cuvette should be wiped clean before placing it in the spectrophotometer.

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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If a student determined the frequency of a line to be 3.456x1014 s-1 and this is value gives a percent error of 1.11% when compared to the true value, what is the true value for the frequency?