Let us say that R is the major enantiomer, while
S is the minor enantiomer, therefore the formula for enantiomeric excess (ee)
is:
ee = (R – S) * 100%
Let us further say that the fraction of R is x (R
= x), and therefore fraction of S is 1 – x (S = 1 – x), therefore:
75 = (x – (1 – x)) * 100
75 = 100 x – 100 + 100 x
200 x = 175
x = 0.875
Summary of answers:
R = major enantiomer = 0.875 or 87.5%
<span>S = minor enantiomer = (1 – 0.875) = 0.125 or
12.5%</span>
Your answer will be to break the bonds between the individual water molecules
Answer:
Electromagnetic spectrum
Explanation:
Telescopes are used by observers to monitor various electromagnetic radiation. Only one component of the visible radiation can be observed by each type of instrument. Telescopes, ultraviolet telescopes, optical celestial objects, and other types of telescopes are available.
Answer:
Ký hiệu hóa học (xem thêm ký hiệu) cho nước. Mỗi phân tử nước chứa hai nguyên tử hydro (H) liên kết với một nguyên tử oxy (O).
The chemical symbol (see also symbol) for water. Each molecule of water contains two atoms of hydrogen (H) joined to a single atom of oxygen (O).
