For the phosphite ion, (PO3) 3- : (a) giving all the steps, write the Lewis structure. (b) calculate the formal charges on O atoms and P atom. (c) draw the shape of the ion.
Given the following standard reduction potentials in acid solution
E°(V)
Al3+(aq)+3e- ↔ Al(s) -1.66
Sn4+(aq)+2e- ↔ Sn2+(aq) +0.14
I2(s)+2e- ↔ 2I-(aq) +0.53
Which is the weakest oxidizing agent in this list?
Al3+(aq)
Al(s)
I– (aq)
I2(s)
3. Draw a sequence of reactions to go from heptan-1-ol to a monohalogenated alkane. Draw or name the products and reactants of each reaction in this series. (6 marks)
Pentan-3-ol plus an oxidizing yields PRODUCT A. PRODUCT A plus H2, in the presence of a catalyst, heat, and pressure, yields PRODUCT B. Draw and name both PRODUCT A and PRODUCT B. (4 marks)
What is the pH of a solution containing 0.200 mol sodium acetate and 0.100 mol acetic acid dissolved in 100.0 mL of water, given that the pKa of acetic acid is 4.75?
This amino acid has an overall net charge of -1 at pH 8.5
Select one:
a. arginine
b. cysteine
c. histidine
d. lysine
e. proline
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