Equivalent weight (also known as gram equivalent) 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.
Equivalent weight is the weight of molecule divided by acidity or basesity. Eq. Wt.= Molecular weight of molecule/ acidity or basesity. Ex. Eq. Wt. Of h2so4 is given as:-Wt of molecule= 98. Basesity = 2. Then equivalent wt. = 98/2=59. So equivalent weight of h2so4 is 59. I think u understand what I am saying… Thank you
Best Answer: You will be calculating equivalent weights of acids, bases, and salts. So the rule is to divide the molecular weight of an acid by the number of replaceable H atoms; divide the molecular weight of a base by the number of OH groups; and divide the molecular weight of a salt by the number of H's or OH's that reacted to form it.
In science, the equivalent weight of a solution is the molecular weight of the solute, or dissolved substance, in grams divided by the valence of the solute. 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.
I went to Wikipedia, and I decided to pick up the definition for an equivalent there. And I actually didn't find it too useful, but there are some things that I wanted to point out. So it says, "The equivalent is formally defined as the amount of a substance which will either react or supply with ...
In order to help you quickly find the metal weight formula, I made infographic which is not only practical but also beautiful. (To the bottom) P.S: Among all of the metal weight calculation formula in the following part, there are two kinds of metals that are not mentioned, which are I beam steel and H beam steel.
Tools: Formula Weight Calculator Putting in a molecular formula of any type such as K2Cr2O7, CH3CH2COOH, KFe[Fe(CN)6]3, or Na2B4O7.10H20 will result in the molar mass and mass analyses being calculated when the button is pressed.
Acidity of Base(A)=. Equivalent Weight of Base(Ew)= kg. x =. The Equivalent Weight Calculator(Base) an online tool which shows Equivalent Weight (Base) for the given input. Byju's Equivalent Weight Calculator(Base) is a tool which makes calculations very simple and interesting.
Calculating Equivalent Weight of Epoxy Mixtures Most formulated products include mixtures of epoxy resins, diluents (reactive and unreactive), fillers, additives,…. It is essential to determine the Epoxy Equivalent Weight (E.E.W.) of the mixture to determine proper stoichiometric ratios with the curing agent.
Note that atomic weight substitutes molecular weight and valency substitutes valence factor in the definition. Valencies of hydrogen, calcium and oxygen are 1,2 and 2 respectively. Hence, their equivalent weights are 1/1 =1, 40/2 = 20 and 16/2 = 8 respectively. Equivalent weight of an acid
About This Quiz and Worksheet. Inside this combination of a quiz and worksheet, you can find out how well you understand the calculation of equivalent weight.
Definitions of Equivalent Weight ( Acid-Base Context ) The weight of a compound that contains ONE EQUIVALENT of a proton (for acid) or ONE EQUIVALENT of an hydroxide (for base). Examples: (1) H 2 SO 4 + 2OH-= 2H 2 O + SO 4 2-Molecular weight of sulfuric acid (H 2 SO 4) = 98.07 g/mol
An equivalent weight is the weight, in g, of an atom or radical divided by the valence of the atom or radical. A milliequivalent is one-thousandth of an equivalent (Eq). Because the ionization of phosphate depends on several factors, the concentration is usually expressed in millimoles, moles, or milliosmoles which are described below.
calculation of equivalent weight. But depending upon the reaction involved, equivalent weight can be simplified as below. Equivalent weight in Neutralization Reactions: Equivalent weight of an acid is that weight of it which contains one g atom of replaceable hydrogen e.g. 1.0078 g of hydrogen.
The American Piping Products carbon equivalent calculator allows for the measurement of what the carbon equivalent is for piping materials that are an alloy steel. . Understanding the carbon equivalent of an alloy steel pipe is integral to a piping project, especially when welding will be a necessary part of t
Here is the formula, Formula for Unit weight of steel = D 2 /162.28 Kg/m. Let's take an example, If we want to calculate the unit weight of 8mm steel rod of 2-metre height, Weight of steel = 8 2 /162.28 = 0.3944 kg/m * 2m = 0.79 kg. So 1- meter of 8 mm steel weighs around 0.79kg.
Alkalinity buffers water against pH changes. Calculate alkalinity in terms of calcium carbonate using titrate volume, titrate concentration, water sample volume, a correction factor based on the titration method and the conversion factor for milliequivalents to milligrams of calcium carbonate.
Equivalent Weight Definition and Gram Equivalent Weight Equivalent Weight is defined the as ratio of molar mass of substance to the valence of the substance.Valence is also denoted as equivalence factor. The valence is the number of H + in Acid, OH-in base and for salt,charge present in ionic forms. For reduction/oxidation (redox) reactions it ...
Equivalent Weight. We define the equivalent weight of a substance (element or compound) as: "The number of parts by weight of it, that will combine with or displace directly or indirectly 1.008 parts by weight of hydrogen, 8 parts by weight of oxygen, 35.5 parts by weight chlorine or the equivalent parts by weight of another element".
The Individual Elements. The n number of equivalents in the equivalent weight formula for an individual element is the absolute value of that element's valence charge. The valence charge of a main group element in families 1 through 4 is simply its family number. For example, lithium is in family 1. Therefore, its valence charge is 1.
Equivalent weight of salt = molecular weight of salt/charge present on ionic form. The salt Na2CO3 ionizes to form 2Na+ and CO3(–2). So, the charge present on both. ions is 2. Equivalent weight of Na2CO3 = 106 /2 = 53 g/eq
Calculate equivalent weight Divide the molecular weight by the number of hydrogen protons it donates as acid or the number of hydroxide (OH)- anions it produces as a base. Use the units of grams per equivalent of H+ or grams per equivalent of (OH)-, depending on the ion species the molecule donates to the reaction.
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