NEW 205 Lecture Notes - Lecture 5: Order Of Merit

Describe the preparation of

(a) 2.50 L of 21.0% (w/v) aqueous glycerol (C 3 H 8 O 3 , 92.1 g/mol).

(b) 2.50 kg of 21.0% (w/w) aqueous glycerol.

(c) 2.50 L of 21.0% (v/v) aqueous glycerol.

An amphipathic protein helix is lying flat one the surface of a lipid bilayer membrane. Which of the following sets of amino acids would most likely face away from the lipid bilayer and towards water?

A. S-W-I-L-T

B. F-G-I-L-P

C. A-C-D-E-H

D. I-L-M-F-V

E. Y-W-W-L-R

Consider a box with width W, length L, and height H. Suppose you have to construct a box with the following constraint: W+L+H equal or less then 30.

a) Suppose W has to be 12. What is maximize volume of box? What should L and H be?

b) Suppose W has to be some number x element of set (0,30). In order maximize volume of the box, what should L and H be?

c) Using answer from part B, in order to maxmize the box what is the W, L, H?