Answer:
<em>Figure Attached</em>
Explanation:
a. To draw a Newman projection we draw a circle for the rare carbon and and put a dot in center of circle for the front carbon. For a dihedral angle of 180° we put the respective groups opposite to each other making an angle of 180°.
b. For a dihedral angle of 60° Just rotate the conformation of dihedral angle 180° to anti clock wise up to 120°.
For a dihedral angle of 300° Just rotate the conformation of dihedral angle 180° to clock wise up to 120°.
c. The lowest energy conformation is the conformation having dihedral angle 180°. Because in this conformation the bulky groups are anti to each other.
d. Conformations having dihedral angle 60° and 300° are reflection of each other.
Number of moles of solute in 16.55 mL of 0.1475 M M2Cr3O7 is 0.00244 moles.
<u>Explanation:</u>
The properties and behavior of many solutions depend not only on the nature of the solute and solvent but also on the concentration of the solute in the solution. Molarity (M) is the concentration of a solution expressed as the number of moles of solute per liter of solution:
,
Here , .
⇒
⇒
⇒
⇒
Therefore, Number of moles of solute in 16.55 mL of 0.1475 M M2Cr3O7 is 0.00244 moles.