The specific rotation of (S)-carvone (at 20°C) is +61. A chemist prepared a mixture of (R)-carvone and its enantiomer, and this mixture had an observed rotation of -55°.

a. What is the specific rotation of (R)-carvone at 20°C?
b. Calculate the % ee of this mixture.
c. What percentage of the mixture is (S)-carvone?

Which feature do highland climates have that lower elevation areas do not?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?