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k2s2o8 molecular weight

Understanding the Molecular Weight of Potassium Persulfate (K2S2O8)

Potassium persulfate, represented by the chemical formula K2S2O8, is a white crystalline solid primarily used as an oxidizing agent in various chemical processes. It is an inorganic compound that plays a crucial role in industries such as cosmetics, pharmaceuticals, polymer production, and analytical chemistry. One of the fundamental properties of potassium persulfate is its molecular weight, which is important for stoichiometric calculations in chemical reactions.

To calculate the molecular weight of K2S2O8, we need to consider the atomic weights of its constituent elements potassium (K), sulfur (S), and oxygen (O). The atomic weights of these elements are approximately as follows potassium (K) is about 39.1 g/mol, sulfur (S) is around 32.1 g/mol, and oxygen (O) is roughly 16.0 g/mol.

In the formula K2S2O8, we have two potassium atoms, two sulfur atoms, and eight oxygen atoms. Therefore, we can calculate the molecular weight by summing the contributions from each element

1. Potassium There are 2 potassium atoms in the formula. \[ 2 \times 39.1 \, \text{g/mol} = 78.2 \, \text{g/mol} \]

2. Sulfur There are 2 sulfur atoms in the formula. \[ 2 \times 32.1 \, \text{g/mol} = 64.2 \, \text{g/mol} \]

k2s2o8 molecular weight

3. Oxygen There are 8 oxygen atoms in the formula. \[ 8 \times 16.0 \, \text{g/mol} = 128.0 \, \text{g/mol} \]

Now, to find the total molecular weight of K2S2O8, we add all the contributions together \[ 78.2 \, \text{g/mol} + 64.2 \, \text{g/mol} + 128.0 \, \text{g/mol} = 270.4 \, \text{g/mol} \]

Thus, the molecular weight of potassium persulfate (K2S2O8) is approximately 270.4 g/mol. This value is critical for chemists and industry professionals who work with this compound, as it allows them to calculate the moles of potassium persulfate required for reactions and formulations accurately.

The importance of K2S2O8 extends beyond its molecular weight. As a powerful oxidizing agent, it is frequently employed in polymerization reactions, particularly in creating polymers like polyacrylamide. Furthermore, its oxidative properties make it suitable for applications in the synthesis of various chemicals, bleaching agents, and in laboratory analyses where precise oxidative conditions are required.

In conclusion, understanding the molecular weight of potassium persulfate is essential for its utility in various applications. This knowledge facilitates accurate and efficient use of the compound in both laboratory and industrial settings. As a versatile chemical, K2S2O8 continues to play a significant role in chemistry, emphasizing the need for thorough comprehension of its properties, including its molecular weight.

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