Which drawing below best represents hydrogen bonding methanol, ch3oh?
1 answer:
Hydrogen Bond Interactions are formed between Hydrogen atom attached to more electronegative atom (F, O or N) of one molecule and highly electronegative atom (F, O or N) of another molecule. In case of methanol, hydrogen is bonded directly to oxygen atom and gets partial positive charge, this hydrogen atom interacts with Oxygen (Highly electronegative) atom of second molecule. Hydrogen bonding are stronger due to which methanol has greater b.p (64.7 ⁰C) as compared to methane (-161.5 ⁰C).
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Answer:
-1.05 V
Explanation:
A detailed diagram of the setup as required in the question is shown in the image attached to this answer. The electrolytes chosen are SnCl2 for the anode half cell and MnCl2 for the cathode half cell. Tin rod and manganese rod are used as the anode and cathode materials respectively. Electrons flow from anode to cathode as indicated. The battery connected to the set up drives this non spontaneous electrolytic process.
Oxidation half equation;
Sn(s) ------> Sn^2+(aq) + 2e
Reduction half equation:
Mn^2+(aq) + 2e ----> Mn(s)
Cell voltage= E°cathode - E°anode
E°cathode= -1.19V
E°anode= -0.14 V
Cell voltage= -1.19 V - (-0.14V)
Cell voltage= -1.05 V
