Author Question: Which of the following cell diagrams represents a galvanic cell? (Ered(Sr2+/Sr) = 2.899 V, ... (Read 65 times)

melly21297 · **on:** Mar 21, 2021

Question 1

Which of the following are incorrectly paired?

◦ Alumina – pure aluminum oxide
◦ Downs cell – electrolyzes molten sodium chloride
◦ Mercury cell – used in preventing contamination of NaOH by NaCl
◦ Hall-Héroult process – uses cryolite in production of aluminum
◦ All of these are correct.

Question 2

Which of the following cell diagrams represents a galvanic cell? (E°_red(Sr²⁺/Sr) = –2.899 V, E°_red(H⁺/H₂) = 0.00 V)

◦ Pt(s), H₂(g) | H⁺(aq) || Sr²⁺(aq) | Sr(s)
◦ Sr(s) | Sr²⁺(aq) || H⁺(aq) | H₂(g), Pt(s)
◦ Sr(s), H₂(g) | H⁺(aq) || Sr²⁺(aq) | Pt(s)
◦ Pt(s) | Sr²⁺(aq) || H⁺(aq) | H₂(g), Sr(s)
◦ Sr(s) | Pt(s) || H⁺(aq), Sr²⁺(aq) | H₂(g)

iman · **Reply #1 on:** Mar 21, 2021

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