What happens when magnesium is added to Maleic and Fumaric acid? What gas is released from this reaction? I was also wondering if their are any differences between how each acid reacts with the magnesium because one is cis and the other trans.

What happens when sodium carbonate is added to each of these acids? what gas is released and are their differences because one is cis and the other is trans?
thanks for any help its appreciated

I assume it is H2 gas released when reacting with Mg metal and CO2 released when reacting with Na2CO3. I know of no differences in these reactions because one is cis and one trans.

I think with Mg hydrogen is released because I did pop test and it pop the sound during our experiment.with Nodium carbonate carbon dioxide gas is given of as bi products gas.

1. Assuming that the equilibrium concentration was achieved in procedure A, it is classified that fumaric acid (trans-form) is more stable. In procedure A, the overall equation of the conversion is:


In a reversible reaction, the higher stability of the compound, the more its stable form exists. This in procedure A, there are more fumaric acid formed, it will be more stable, resulting in a higher stability.

When magnesium is added to Maleic and Fumaric acid, a reaction occurs resulting in the formation of salts and the release of hydrogen gas (H2).

To understand the differences between how Maleic and Fumaric acid react with magnesium, we need to consider their structural differences. Maleic and Fumaric acid are isomers, meaning they have the same molecular formula but different structural arrangements. In Maleic acid, the carboxylic acid groups are present on the same side of the double bond, making it a cis-isomer. In Fumaric acid, the carboxylic acid groups are on opposite sides of the double bond, making it a trans-isomer.

When magnesium is added to Maleic acid, the double bond present in Maleic acid is reduced by magnesium, resulting in the loss of the double bond and the formation of a cyclic magnesium salt. The reaction goes as follows:

Maleic acid + Magnesium → Magnesium Maleate + Hydrogen gas

Similarly, when magnesium is added to Fumaric acid, the double bond present in Fumaric acid is also reduced by magnesium, resulting in the formation of a cyclic magnesium salt. The reaction is the same as in Maleic acid:

Fumaric acid + Magnesium → Magnesium Fumarate + Hydrogen gas

Therefore, the main difference between how Maleic and Fumaric acid react with magnesium is the formation of different magnesium salts.

Now, let's discuss the reaction between sodium carbonate and Maleic and Fumaric acid. When sodium carbonate is added to these acids, carbon dioxide gas (CO2) is released.

Maleic acid + Sodium carbonate → Sodium maleate + Water + Carbon dioxide gas

Fumaric acid + Sodium carbonate → Sodium fumarate + Water + Carbon dioxide gas

The reaction is the same for both acids, regardless of whether they are cis or trans-isomers.

To summarize:
- When magnesium is added to Maleic and Fumaric acid, a reaction occurs resulting in the formation of cyclic magnesium salts and the release of hydrogen gas.
- When sodium carbonate is added to Maleic and Fumaric acid, a reaction occurs resulting in the formation of sodium salts, water, and the release of carbon dioxide gas.
- The main difference between Maleic and Fumaric acid reactions with magnesium is the formation of different magnesium salts, while there is no difference in the reaction with sodium carbonate.