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. Byjus equivalent weight calculator acid is a tool which makes calculations very simple and interesting. Its concerntration is measured by weight percent nco. I know the amine number of a polymer, and the viscosity. So, we can first calculate the equivalent weight of each element in the compound and then add them up. Normality is widely used in analytical chemistry because it simplifies many of the calculations involving solution concentration. Appendix 1 calculation of stoichiometric weight of curing. If we ask you to count the total number of stars in the sky, can you do that. Your pharmacy is the last check point for the prescription written by a physician. Metal weight calculator online free steel weight calculator. Calculate the weight of various forms including box sections, sheets, bars and. An expression of the concentration of specified constituents in water in terms of their equivalent value to calcium carbonate.
This n to kg calculator is designed considering newtons second. This chemistry video tutorial provides a basic introduction into normality for acid base reactions. Steel weight calculator stainless, aluminum, nickel. Barbalace the quantitative relationship between chemical substances in a reaction is known as stoichiometry. Has preentered densities for dozens of commonlyused metals and metal alloys like steel, aluminum, nickel, iron, copper, cadmium, gold, silver, etc. Size ordering gareth pitchford downloadable program. Calculating equivalent weight of epoxy mixtures most formulated products include mixtures of epoxy resins, diluents reactive and unreactive, fillers, additives.
Other liquid additives in the composite mixture may have oh equivalents and need to be taken into account when calculating the amount of curative. Equivalent weight predicts the mass of a substance that will react with one atom of hydrogen in an acidbase analysis such as a titration. 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. So, the basicity of h2so4 is 2 equivalent weight of h2so4 98 2 49 g. The equivalent weight calculator acid an online tool which shows equivalent weight acid for the given input.
Calculate the weight of a steel beam, bar, tube, profiles, channels, or a simple metal sheet. I know the amine number of a polymer, and the viscosity range. Equivalent weight how to calculate equivalent weight. Since molecular weight is a very small quantity, we express it in terms of mole. Equivalent weight calculator online free calculator. A 1 normal 1 n solution contains 1 equivalent weight of solute per liter of solution. Primary resources free worksheets, lesson plans and teaching ideas for primary and. It is essential to determine the epoxy equivalent weight e. When calculating leak off test equivalent mud weight, round down to one decimal place for example. This document is highly rated by class 12 students and has been viewed 12614 times. Equivalent weight of magnesium free download as powerpoint presentation. This handbook is available for download, in pdf format, from. House construction cost calculator excel sheet free download.
How do we calculate the amount of amine hardener require. If you need a fast, flexible and accurate piping hydraulics calculator, download the free fully functional trial version to test it yourself. A chemical formula is a shorthand method of representing the elements in a. How do we calculate the amount of amine hardener require to cure epoxy resin. Apr 16, 2020 equivalent weight mcqsolved, chemistry iitjee and aipmt class 12 notes edurev is made by best teachers of class 12.
If we look at the defining ratio of equivalent weight of a compound ab formed of two radicals say a and b, then we can rearrange the ratio as. Determine the number of atoms of each element in the compound. Therefore, we have the concepts of mole and equivalent weight to make this calculation easy. Please tell me how to calculate the amount of mda required to cure 5 g of. The equivalent weight may be equal to the formula weight molecular weight. Introduction to pharmaceutical calculations, 4th ed. Select alabama alaska alberta arizona arkansas british columbia california colorado connecticut delaware florida georgia hawaii idaho illinois indiana iowa kansas kentucky louisiana maine manitoba maryland massachusetts michigan minnesota mississippi missouri montana nebraska nevada new brunswick new. It explains how to calculate the normality of a solution from. Equation 2 phr1 of amine amine h eq wt x 100 epoxide eq wt of resin example phr d. Aioflo pronounced ayeohflow is a windows application for pipe sizing diameter calculation, flow rate and pressure drop calculations for liquids and gases in single phase flow. The electrochemical equivalent weight of pbo is obtained by dividing the molecular weight of pbo 223. Here is the online newtons to kg calculator to convert n to kg within the fractions of seconds as soon as you input the values.
In other words, it is equal to the mass of the substance in grams that would react with or replace one gram of hydrogen. In topic 2, atoms were described as ranging from the simplest atom, h, containing a single proton and usually no neutrons in its nucleus with one electron orbiting outside that nucleus, through to very large atoms such as uranium for example which contains. Therefore, pharmacy team is responsible for all the final. This means that if the equivalent weight of na is 23 gram and the equivalent weight of cl is 35. Permanently by pao chang cut weight oil weight the weight of ink weight gain weight and balance how to lose weight crj weight textbook weight equivalent weight net weight cephalopod how to gain weight losing weight lose. It is a resourceful practice guide for preparation of the naplex, fpgee, ptcb and california pharmacy board exams. It can be determined by dividing the molecular weight by the number of hydrogen atoms or hydroxyl ions or their equivalent supplied or required by the molecule in. Weight converter for kilograms, pounds, grams and more. How to calculate the equivalent weight or nfactor of.
The equivalent weight of an element or radical is equal to the ratio of its atomic weight or formula weight devided by its valency. This generalized definition is used for the calculation of equivalent weight. Avogadro hypothesized that there was a specific number that would represent the number of atoms or molecules in a mole of that atom or. Curative calculation for polymer binder and additives the function of the curative is to link the oh of the binder hydroxyl compound with a nco of the curative isocyanate compound.
For example, the hardness in water that is caused by calcium, magnesium, and other ions is usually described as calcium carbonate equivalent. Weight converter for units including kilograms, pounds, grams, ounces, stones etc. 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. This equivalent weight is derived based on the second law of issac newton. Metric conversion metric converter weight converter. Calculate the equivalent weight of the following substance as acid or base. Pipe sizing, pressure drop and fluid flow rate calculations.
Lesson objective after completing this lesson, you should be able to. Grammage of paper and paperboard weight per unit area. Equivalent weight is the mass of one equivalent, that is the mass of a given substance which. How to calculate equivalent weights for a compound quora. Sample from introduction to pharmaceutical calculations, 4th edition, published by pharmaceutical press trim size. 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.
Mass is the amount of matter in something, while weight is the gravitational pull on a mass. Appendix 1 calculation of stoichiometric weight of curing agent epoxy equivalent weight eew epoxy equivalent weight eew is a ratio of the weight of a polymer molecule molecular weight to its number of epoxy groups. Reference guide for pharmaceutical calculations krisman. You need to know the amine hydrogen equivalent weight of deta, and you need the epoxy equivalent weight of the. Calculate volumes of rectangular prisms acmmg160 w. Similarly, scientists can not count the exact number of atoms and molecules as they are very tiny and present in a large number. It is necessary to calculate the mass of a solid acid which will react with about 20 cm3 of this solution for a titration using a 25 cm3. Online weight calculator for alloy metals including aluminium and stainless steel. Equivalent weight depends on type of the substance. The equivalent weight of an element is the mass which combines with or displaces 1. Chapter 3 basics of corrosion measurements mixedpotential theory.
Calculate the gram equivalent weight, normality of a solution, milliequivalent. It is consistent with the practice and philosophy of pharmaceutical care. The formula weight of a substance element or compound is the sum of the. Curative calculation for polymer binder and additives. These test methods may be used to determine the epoxy content of manufactured epoxy resins and confirm the stated epoxy content of purchased epoxy resins. For example, equivalent weight of acid molecular weight of acidbasicity of acid the acid h2so4 can donate 2 hydrogens. Standard test method for epoxy content of epoxy resins. In other words, it is equal to the mass of the substance in grams that would react with or. The mixed potentialtheory 1 consists of two simple hypothesis. To calculate the formula weight or molecular weight of a compound, set up a table. Page 47 concentrations 47 in the case of wv and vw there is an agreed convention that states that weight is expressed in grams and volume is expressed in millilitres. Chemical calculations i atomic and formula weights.
Let us calculate the electrochemical equivalent weight. The aircraft weight and balance handbook has been prepared in recognition of the importance. The concept of equivalent weight allows you to explore the fact that atoms combine to form molecules in fixed number ratios, not mass ratios. Equivalent weight of magnesium mole unit magnesium. If an input is given then it can easily show the result for the given number. Normality denotes the number of equivalent of a solute in 1 lt of solution. The equivalent weight of an element is its gram atomic weight divided by its valence combining power. Every substance may be assigned an equivalent weight. Use the search box to find your required metric converter. Equivalent weight is weight of 1 equivalent of any substance. Q q are specified in coulombs, d is in meters, and. Equivalent weight an overview sciencedirect topics. Equivalent weight of the substance is defined as the weight of the substance that contains or reacts with 1.
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