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Definition: Equivalent Mass of Metal is the number of parts by mass of an element which can displace/combine with 1.008 parts by mass of hydrogen or 8 parts by mass of oxygen or 35.5 parts by mass of chlorine.
Purpose: This calculator helps determine the equivalent mass of a metal using the chloride formation method at STP (Standard Temperature and Pressure).
The calculator uses the formula:
Where:
Explanation: The mass of metal is divided by the volume of chlorine reacted, then multiplied by the volume of chlorine that would react with the equivalent mass of the metal.
Details: Determining equivalent mass is crucial in stoichiometric calculations, chemical analysis, and understanding the combining capacity of elements in chemical reactions.
Tips: Enter the mass of metal in kg, volume of chlorine reacted in m³, and volume of chlorine that would react with equivalent mass of metal in m³. All values must be > 0.
Q1: What is STP in chemistry?
A: STP stands for Standard Temperature and Pressure, defined as 0°C (273.15 K) and 1 atm pressure (101.325 kPa).
Q2: Why is chlorine used in this method?
A: Chlorine reacts with most metals to form stable chlorides, making it ideal for equivalent mass determinations.
Q3: How do I measure the volume of chlorine reacted?
A: The volume can be measured using a gas burette or gas syringe in a controlled laboratory setup.
Q4: What's the significance of equivalent mass?
A: Equivalent mass helps in understanding the combining ratios of elements and is fundamental in stoichiometry.
Q5: Can this method be used for all metals?
A: This method works for metals that react with chlorine to form stable chlorides under STP conditions.