How many SO32- ions are contained in 99.6 mg of Na2SO3? The molar mass of Na2SO3 is 126.05 g/mol.

In this article, we’ll delve into the world of chemistry and explore how to calculate the number of sulfate ions (SO42-) present in a given amount of sodium sulfite (Na2SO3). So, let’s get started!

The Basics of Sodium Sulfite

Sodium sulfite is an important compound used in various industries such as food processing, textile manufacturing, and pharmaceuticals. Its molar mass is 126.05 g/mol, which means that one mole of Na2SO3 weighs 126.05 grams.

Converting Mass to Moles

To find the number of sulfate ions (SO42-) in a given amount of sodium sulfite, we need to convert the mass of Na2SO3 to moles first. We can use the molar mass of 126.05 g/mol and the formula:

moles = mass / molar mass

In this case, we have 99.6 mg (or 0.0996 grams) of Na2SO3. Let’s convert it to moles:

moles = 0.0996 g / 126.05 g/mol ≈ 0.00079 mol

Finding the Number of SO42- Ions

Sodium sulfite (Na2SO3) is a compound composed of sodium ions (Na+) and sulfate ions (SO42-). Since we have one mole of Na2SO3, let’s find out how many moles of SO42- are present:

moles SO42- = 1 mol Na2SO3 x (1 mol SO42- / 1 mol Na2SO3) ≈ 0.00079 mol

Now that we have the number of moles of SO42-, we can find the actual number of ions:

number of SO42- ions = moles SO42- x Avogadro's constant (6.022 x 10^23)

≈ 0.00079 mol x 6.022 x 10^23 ≈ 4.81 x 10^18

Conclusion and Practical Applications

In this article, we’ve demonstrated how to calculate the number of sulfate ions (SO42-) in a given amount of sodium sulfite (Na2SO3). By converting the mass of Na2SO3 to moles and then finding the number of SO42- ions present, we can determine the actual quantity of these ions.

This calculation has practical applications in various industries where sodium sulfite is used. For instance, in food processing, knowing the amount of sulfate ions present can help ensure the product meets quality standards. Similarly, in pharmaceuticals, accurate calculations are crucial for manufacturing and packaging purposes.

Further Reading and Resources

For more information on chemistry calculations, you may want to explore resources such as online calculators or textbooks. Additionally, learning about the properties and applications of sodium sulfite can provide valuable insights into its uses in various industries.

In conclusion, calculating the number of SO42- ions in a given amount of Na2SO3 is a straightforward process that requires understanding of chemistry principles and calculations. By following these steps, you’ll be able to determine the actual quantity of sulfate ions present, which can have practical implications in various fields.