What is the importance of equivalent weight in chemistry?
Table of Contents
- 1 What is the importance of equivalent weight in chemistry?
- 2 Why do we use equivalent weight?
- 3 What is difference between molecular weight and equivalent weight?
- 4 What is equivalent mass in chemistry?
- 5 What is equivalent concept in chemistry?
- 6 What is molecular weight and equivalent weight?
- 7 What is the equivalent of equivalent weight?
- 8 What is equequivalent weight in chemistry?
What is the importance of equivalent weight in chemistry?
The idea of equivalent mass to compare chemically different elements! Atoms combine with each other to form chemical compounds, such that the elements are always present in definite proportions by mass and this property can be used to make chemically different molecules with different mass, equal.
Why do we use equivalent weight?
Equivalent weight is used in the calculation of normality. The normality of a solution is defined as the number of gram equivalents of the solute present per litre of the solution. It is represented by the symbol, N.
What is equivalent weight in titration?
The equivalent weight of an acid is the mass of acid required to generate one mole of hydrogen (hydronium) ion in aqueous solution. For an acid that contains more than one ionizable hydrogen, the equivalent weight is a fraction of the molar mass.
What is equivalent weight in chemistry Quora?
Equivalent weight is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance. The equivalent weight of an element is the mass which combines with or displaces 1.008 gram of hydrogen or 8.0 grams of oxygen or 35.5 grams of chlorine.
What is difference between molecular weight and equivalent weight?
The key difference between gram molecular weight and gram equivalent weight is that the term gram molecular weight refers to the mass of a molecule in grams which is numerically equal to the molecular weight of that substance, whereas the term gram equivalent weight refers to the mass of one equivalent in grams.
What is equivalent mass in chemistry?
Equivalent mass: The number of parts by mass of a substance that combines with or displaces 1.008 parts by mass of hydrogen or 8.0 parts of oxygen or 35.5 parts of chlorine is called its equivalent mass (EM).
How do you find equivalent weight in chemistry?
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What is a equivalent in chemistry?
An equivalent (symbol: officially equiv; unofficially but often Eq) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount (typically one mole) of another substance in a given chemical reaction. The mass of an equivalent is called its equivalent weight.
What is equivalent concept in chemistry?
What is molecular weight and equivalent weight?
The key difference between gram molecular weight and gram equivalent weight is that the term gram molecular weight refers to the mass of a molecule in grams, which is numerically equal to the molecular weight of that substance, whereas the term gram equivalent weight refers to the mass of one equivalent in grams.
What is meant by equivalent weight of a base?
The equivalent weight of base : is the weight of compound that contains one equivalent of hydroxide ion (OH-) . Formula for calculating equivalent weight of base = molecular weight / acidity of base. For Ca(OH)2 : acidity is two as it can donate two OH- ions. It’s equivalent weight is = molecular weight /2.
How equivalent weight and molecular weight are related?
Equivalent Weight. The weight of a compound that contains ONE EQUIVALENT of a proton (for acid) or ONE EQUIVALENT of an hydroxide (for base). In this example, the magnitude of the equivalent weight of sulfuric acid is HALF of that of the molecular weight.
What is the equivalent of equivalent weight?
Equivalent weight isn’t really a weight– it’s a mass. Mass is the amount of matter in something, while weight is the gravitational pull on a mass. Since we’re only dealing with different chemical compounds on Earth, and we’re dealing with chemistry, it’s acceptable to interchange weight and mass.
What is equequivalent weight in chemistry?
Equivalent weight predicts the mass of a substance that will react with one atom of hydrogen in an acid-base analysis such as a titration. You can calculate it easily, as long as you know the molecular weights of the compounds involved in the reaction.
What is equivalent weight (GWe)?
Equivalent weight is a relative quantity so it does not have any unit. When we express the equivalent weight of a substance in grams, we call it Gram Equivalent Weight (GWE). How to Calculate Equivalent Weight? Equivalent weight = Molar mass / Valence factor
What is the difference between mass and weight in chemistry?
Mass is the amount of matter in something, while weight is the gravitational pull on a mass. Since we’re only dealing with different chemical compounds on Earth, and we’re dealing with chemistry, it’s acceptable to interchange weight and mass.