Describe and explain the possible effect on your results of the following experimental errors or variations. In each case specify the component(s) whose percentage(s) would be too high or too low. (a) After adding the dichloromethane to Panecetin, you didn't stir the mixture long enough. (b) During the NaOH extraction, you failed to mix the aqueous and organic layers thoroughly. (c) You mistakenly extracted the dicholormethane solution with 1 M HCl rather than 1 M NaOH. (d) Instead of using pH paper, you neutralized the NaOH solution to pH 7 using litmus paper.