Equivalent weight of oxidising and reducing agents. The concept of equivalent weight allows you to explore the fact that atoms combine to form molecules in fixed number ratios, not mass ratios. Calculate equivalent weight of cu in cuo and cu20 at wt of cu. What is the equivalent weight of copper sulphate answers. Equivalent weight of an element is defined as the ratio of its molecular mass. The cubic meter in american english or cubic metre in british english is the derived unit of volume. The equivalent weight of an element or radical is equal to its atomic weight atomic weight, mean weighted average of the masses of all the naturally occurring isotopes of a chemical element, as contrasted with atomic mass, which is the mass of any individual isotope. In other words, it is equal to the mass of the substance in grams that would react with or replace one gram of hydrogen.
Standard practice for calculation of corrosion rates and. You can calculate eq for up to 5 precious or base metals using this calculator. What is the equivalent mass of copper sulphate solution. Weigh out about 5 g of dry sodium hydroxide pellets on a watch glass and transfer quantitatively to a 500 ml pyrex beaker and dissolve in about 300 ml carbon dioxidefree distilled water. Equivalent weight of a substance oxidant or reductant is equal to molecular weight divided by number of electrons lost or gained by one molecule of the substance in a redox reaction. The equivalent weight calculatoracid an online tool which shows equivalent weight acid for the given input. The weight of a compound that contains one equivalent of a proton for acid or one equivalent of an hydroxide for base. How to calculate the equivalent weight of hno3 quora. We know that equivalent weightatomic weightvalency now sulfur has variable valency of 2,4,6. Theoretical equivalent weight of sulfuric acid h 2 so 4 49. When using the calculator be sure to select the appropriate pricing units oz. A constant used also as a unit of electric charge representing the electric charge carried by one mole an avogadros number of electrons or one equivalent of ions, and equal to the quantity of electricity that is capable of depositing or liberating one gram equivalent weight of a substance in electrolysis, approximately 9. The equivalent weight of an acid or base for neutralization reactions or of any other compound that acts by double decomposition is the quantity of the compound that will furnish or react with or be equivalent to 1.
The unit of equivalent weight is the atomic mass unit. Equivalent weight definition and meaning collins english. As a monoprotic acid its equivalent weight is 63, i. The density of water is 1 kilogram per liter kgl at 39. Calculate equivalent weight of cu in cuo and cu20 at wt of cu 63. If an input is given then it can easily show the result for the given number. Equivalent weight definition of equivalent weight by. Cueq metal equivalent calculator for mining results. The equivalent weight of cu is given by the formula. Equivalent weight variable valence equivalent weight element valence equivalent weight element valence equivalent weight cda655 c65500 si4 cu 1 50. He has worked with clients in the legal, financial and nonprofit industries, as well. Buoyancy calculator calculate the buoyant force of an. Equivalent weight definition of equivalent weight by the.
Equivalent weight definition, the combining power, especially in grams gram equivalent, of an element or compound, equivalent to hydrogen as a standard of 1. Equivalent weight and gram equivalent part 1 duration. Metal oxides contain a metal cation and the oxide anion o2. Chemistry level 4 what is the equivalent weight of h n o x 3 \ce hno3 h n o x 3 in the reaction cu reacting with h n o x 3 \ce. Its concerntration is measured by weight percent nco. The calculator requires that you know the fluid density in imperial or metric units, as well as the volume occupied by the body object for which the buoyant force is calculated. But how how can the equivalent weight of sulfur be 32. An online carbon equivalent calculator is presented below, but an excel spreadsheet is also provided here. We are committed to strengthening our people and the communities where we live and work using all resources responsibly and efficiently, and ensuring our businesses are safe, successful and sustainable for generations to come. Equivalent weight of an element is defined as the ratio of its molecular mass and the common valency of the element.
Equivalent weight is calculated by dividing the molecular weight by n factor. But one gram equivalent weight means, one gram of its equivalent weight. The equivalent weight of ion formula weight charge 1. Jun 15, 2016 but one gram equivalent weight means, one gram of its equivalent weight. How many kilograms are in one cubic meter of water. Equivalent weight of the substance is defined as the weight of the substance that contains or reacts with 1. E w w2 w2 w1 atomic weight of oxygen any of a large and important class of chemical compounds in which oxygen is combined with another element is oxide. Find how much water weighs given a volume in teaspoons, tablespoons, cups, quarts, pints, gallons, liters, or milliliters. Copper will react with oxygen to form either brick red cuprous oxide copperi oxide, with 63. 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. As an oxidising agent its equivalent weight depends on the product. It now factors in metallurgical recovery rates and smelter returns.
That is, while element masses differ, when it comes to bonding with other atoms, the number of atoms, expressed in moles, is the determining factor in how much of a given element or compound will react with a given mass of another. Enter numbers in boxes below for conversion values. For the love of physics walter lewin may 16, 2011 duration. Divide the molecular weight by the valence to calculate the equivalent weight.
Mass is the amount of matter in something, while weight is the gravitational pull on a mass. Equivalent weight, in chemistry, the quantity of a substance that exactly reacts with, or is equal to the combining value of, an arbitrarily fixed quantity of another. Equivalent weight definition of equivalent weight at. Equivalent weight calculator online free calculator. Equivalent weight of alloy can be determined using the below formula. The molecular weight of naoh is 40 equivalent weight 40, and therefore 0. Cueq copper equivalent and aueq gold equivalent are most common in copper porphyry deposits. Metal equivalent calculation how to calculate the mineral. You would also need to know the density of the substance.
The weight of a substance that will combine with or replace one mole of hydrogen or onehalf mole of oxygen. Equivalent weightpart 12 n factor and equivalent weight of. The equivalent weight of a substance may vary with the type of reaction it undergoes. Definition of cubic meters of water provided by wikipedia. Free online buoyancy calculator with which you can calculate the buoyant force experienced by an object submerged in a liquid substance like sea water, oil, gasoline, etc.
The change in charge of cu, between both compound will be 1. Calculate equivalent weight of cu in cuo and cu20 at wt of cu 63 6 chemistry some basic concepts of chemistry. Equivalent weight article about equivalent weight by the. Metal equivalent calculations are often used to compare similar deposits with slightly different metal ratios. What is the meaning of equivalent weight and its formula. Byjus equivalent weight calculatoracid is a tool which makes calculations very simple and interesting. Theoretical equivalent weight of sulfuric acid h 2. The equivalent weight of an element is the mass which combines with or displaces 1. By definition, equivalent weight is the mass of the substance that would react with 1g of hydrogen. This means that 1 liter l of water weighs 1 kilogram. Calculate equivalent weight of cu in cuo and cu2o at. The equivalent weight of an element or radical is equal to the ratio of its atomic weight or formula weight devided by its valency. Thus, potassium permanganate reacting by double decomposition has an equivalent weight equal to its gram molecular weight, 158. The weight of a volume of water can be found given the density, which is the mass compared to the volume.
Mar 02, 2014 equivalent weight of alloy can be determined using the below formula. In fact, this formula based definition of equivalent weight of an element is identical with the definition mentioned earlier in this answer. This generalized definition is used for the calculation of equivalent weight. The equivalent weight of ion formula weightcharge 1. Equivalent weight an overview sciencedirect topics. Its symbol is m 3 it is the volume of a cube with edges one metre in. Find an answer to your question equivalent weight of cu in cuo is. Equivalent weight variable valence equivalent weight element valence equivalent weight element valence equivalent weight cda655 c65500 si4 cu1 50. Isocyanate equivalent weight number of grams of an isocyanate or prepolymer in order to have one equivalent of isocyanate groups nco. The equivalent weight of any substance is the mass of the substance in grams that combines with or is chemically equivalent to eight grams of oxygen or one gram of hydrogen. Silver equivalent ageq may be used in a silver mine with lead and zinc or other base metal credits. We transform renewable resources into recyclable products that people depend on every day.
Equivalent weight definition is the mass of a substance especially in grams that combines with or is chemically equivalent to eight grams of oxygen or one gram of hydrogen. However, since two molecules of the reactant are required, the n factor will be 12, which equals 0. The equivalent weights of the underlined from top to bottom based on the above reactions are 6 m, 3 m, 2 m, 2 m, m respectively. Therefore you must divide the mass by 2 to get equivalent weight.
Equivalent weight of sulfur in scl2 is 16,what is the equivalent weight of s in s2cl2. So for compounds with molecular weight equal to its equivalent weight, their nomality and molarity is same, but for others, nomality is always greater than molarity. The concepts of equivalent weight and gram equivalents help link the concept of molar ratios to the fact that different elements have different molecular weights. Sep 03, 2015 for the love of physics walter lewin may 16, 2011 duration.