Why are carbon, platinum, and gold inert in electrolysis?

In summary, the conversation discusses the concept of inert elements, specifically carbon, platinum, and gold, and why they are considered to be "inert." The solution suggests that "resistant" is a more accurate term to describe these elements, as they are used as electrodes to prevent reactions with electrolytes. The conversation also mentions the concept of duplet or octet configuration, which is fulfilled by noble gases, and how it relates to the inert properties of these elements. The conversation then delves into the topic of noble metals and the Galvanic Series, with confusion about why carbon is listed as the first element in the series.
  • #1
kang_an1983
2
0

Homework Statement



Why are carbon, platinum and gold inert?

Homework Equations



Duplet or Octet configuration

The Attempt at a Solution


We use inert elements such as carbon, platinum and gold as the electrodes to prevent the electrodes react with the electrolyte. As far as I know the inert elements are noble gases only that satisfy the duplet (He element) or octet configuration.
Since carbon, platinum and gold do not satisfy the duplet or octet configuration, why are they inert?
 
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  • #2
"inert" is a bit of an exaggeration. "Resistant" is a better term.

You should review http://en.wikipedia.org/wiki/Noble_metals"
 
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  • #3
Thank you for your respond.
I have already read about noble metal and I am still confused..hehehe...Why are gold and platinum resistant to corrosion? I have already read about Galvanic Series too. What is the basic to arrange the Galvanic Series? Why is Carbon placed on the first position in Galvanic Series?
 

1. What is an electrode in electrolysis?

An electrode in electrolysis is a conductor through which an electric current enters or leaves a medium, such as an electrolytic cell. It is used to transfer electrons to or from the electrolyte solution, causing a chemical reaction to occur.

2. How does an electrode work in electrolysis?

In electrolysis, an electrode is connected to a power source which provides electrons to the electrode. These electrons are then transferred to or from the electrolyte solution, causing a chemical reaction to occur. This process can be used to separate different elements from a compound or to produce desired chemical products.

3. What materials are used to make electrodes in electrolysis?

The materials used to make electrodes in electrolysis depend on the specific electrolyte solution and the type of reaction desired. Common materials include metals such as platinum, gold, and graphite, as well as non-metals such as carbon and silicon. These materials are chosen based on their ability to conduct electricity and their chemical reactivity.

4. What are the two types of electrodes in electrolysis?

The two types of electrodes commonly used in electrolysis are anode and cathode. The anode is the positively charged electrode where oxidation occurs, while the cathode is the negatively charged electrode where reduction occurs. These two reactions work together to produce the desired chemical reaction in the electrolytic cell.

5. What factors affect the efficiency of an electrode in electrolysis?

The efficiency of an electrode in electrolysis can be affected by several factors, including the material and size of the electrode, the strength of the electric current, and the concentration and temperature of the electrolyte solution. Additionally, impurities in the electrode or electrolyte can also affect its efficiency. It is important to carefully consider these factors when designing an electrolysis experiment to achieve optimal results.

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