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Definition: Equivalent mass of bases is defined as the mass which reacts with one mole of hydrogen cations (H+).
Purpose: This calculator helps determine the equivalent mass of a base through neutralization reaction with a known acid.
The calculator uses the formula:
Where:
Explanation: The weight of base is divided by the product of acid volume and normality to determine the equivalent mass that reacts with one equivalent of acid.
Details: Determining equivalent mass is crucial for stoichiometric calculations in acid-base reactions, titration analysis, and understanding chemical reactivity.
Tips: Enter the weight of base in kg, volume of acid in cubic meters, and normality of acid in mol/m³. All values must be > 0.
Q1: What units should I use for the inputs?
A: Weight should be in kilograms (kg), volume in cubic meters (m³), and normality in moles per cubic meter (mol/m³).
Q2: How do I convert from grams to kilograms?
A: Divide gram values by 1000 to convert to kilograms (1 kg = 1000 g).
Q3: What if I have volume in liters?
A: Convert liters to cubic meters by dividing by 1000 (1 m³ = 1000 L).
Q4: How is normality different from molarity?
A: Normality accounts for reactive capacity (equivalents per liter), while molarity is simply moles per liter. For monoprotic acids, they are equal.
Q5: Can I use this for polyprotic bases?
A: Yes, but the equivalent mass will represent the mass that reacts with one equivalent of acid, not necessarily one mole.