Calculate the percentages of -D-glucose and -D-glucose present at equilibrium from the specific rotations of -D-glucose, -D-glucose, and the equilibrium mixture. Compare your values with those given in Section 22.10. (Hint: The specific rotation of the mixture equals the specific rotation of -D-glucose times the fraction of glucose present in the plus the specific rotation of - D-glucose times the fraction of glucose present in the β -form.