Home
Back
Equivalent Calculation Formula:
| From: | To: |
The equivalent calculation converts moles to equivalents using the valency of a substance. This is particularly important in electrochemistry and stoichiometry where the concept of equivalents is used to express the reactive capacity of substances.
The calculator uses the equivalent formula:
Where:
Explanation: The valency represents the combining capacity of an element or compound, which determines how many equivalents are present per mole of substance.
Details: Equivalent calculations are essential in various chemical applications including titration calculations, electroplating, determining normality of solutions, and understanding redox reactions where electron transfer occurs.
Tips: Enter the number of moles and the valency of the substance. Both values must be positive numbers. The result will be displayed in equivalents (eq).
Q1: What is the difference between moles and equivalents?
A: Moles measure the amount of substance, while equivalents measure the reactive capacity based on the substance's valency.
Q2: How do I determine the valency of a compound?
A: Valency depends on the context. For elements, it's the combining power. For ions, it's the charge. For compounds in acid-base reactions, it's based on the number of H+ or OH- ions.
Q3: When would I need to use equivalents instead of moles?
A: Equivalents are particularly useful in electrochemistry, titration calculations, and when working with normality instead of molarity.
Q4: Can valency be a decimal value?
A: Yes, in some cases like for elements with variable valency or for compounds where the equivalent weight is calculated based on molecular weight divided by n-factor.
Q5: Is this calculation applicable to all types of chemical reactions?
A: The concept of equivalents is most relevant in redox reactions and acid-base reactions where transfer of electrons or protons occurs.