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The Sigma Aldrich Sulfuric Acid Calculator estimates molarity for sulfuric acid solutions using the Sigma formula, which accounts for density and purity. Sulfuric acid (H₂SO₄) has a molecular weight of 98 g/mol and is commonly available at various concentrations.
The calculator uses the Sigma formula:
Where:
Explanation: The formula converts density and purity information into molar concentration, which is essential for precise chemical preparations.
Details: Accurate molarity calculation is crucial for laboratory work, chemical reactions, and solution preparations where precise concentrations of sulfuric acid are required.
Tips: Enter density in g/mL and purity percentage. The calculator will compute the molar concentration. All values must be valid (density > 0, purity between 0-100%).
Q1: Why is sulfuric acid molarity important?
A: Sulfuric acid is a strong acid used in various chemical processes, and accurate concentration is vital for reaction stoichiometry and safety.
Q2: What is the typical purity of sulfuric acid?
A: Commercial sulfuric acid typically has 96-98% purity, but concentrations can vary from dilute solutions to concentrated (98%) or fuming sulfuric acid.
Q3: How does density relate to concentration?
A: For sulfuric acid, density increases with concentration. This relationship allows calculation of molarity from density measurements.
Q4: Are there safety considerations when handling sulfuric acid?
A: Yes, concentrated sulfuric acid is highly corrosive and requires proper personal protective equipment and handling procedures.
Q5: Can this calculator be used for other acids?
A: This specific formula is designed for sulfuric acid. Other acids have different molecular weights and may require different calculation methods.