equivalent weight: The equivalent weight of an element or radical is equal to its atomic weight or formula weight divided by the valence it assumes in compounds. 2 E.E.W. Name Formula Molecular Weight Equivalent Weight Aluminum Sulfate Al 2(SO 4) 3 18H 2O 666. • When calculating Pressure Reduction Schedule, ROUND DOWN to a whole number (for example: round down 21.6 psi/100 stks to 21 psi/100 stks). Share Tweet Send [Deposit Photos] The equiv­a­lent of a sub­stance, also known as the equiv­a­lent quan­ti­ty of a sub­stance, refers to the quan­ti­ty of a sub­stance that in­ter­acts with one mole … Calculating equivalent mass Defining the equivalent of a substance. A metal oxide contains $60$% metal.The equivalent weight of metal is (1) $12$ (2) $60$ (3) $40$ (4) $24$ I know that the equivalent weight of metal oxide = equivalent weight of metal + 8.But how can i arrive at the answer with this. It is essential to determine the Epoxy Equivalent Weight (E.E.W.) of Mixture = Total Weight of Mixture Wt. The weight of a compound that contains ONE EQUIVALENT of a proton (for acid) or ONE EQUIVALENT of an hydroxide (for base). Any help appreciated. 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 . 1 E.E.W. For example, Equivalent weight of acid = molecular weight of acid/basicity of acid The acid H2SO4 can donate 2 hydrogens. 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. g eq−1kg eq−1. 2 Example 1: A mixture of 80% Liquid Epoxy Resin (E.E.W. Print Equivalent Weight: Definition & Formula Worksheet 1. of the mixture to determine proper stoichiometric ratios with the curing agent. Equivalent weight depends on type of the substance. What is the correct setup to determine the equivalent weight (EW) of fluorine? Fluorine is the ion (F-1) and its molar mass is 19 g. For example, consider the reaction, H 3 PO 4 → HPO 4 2-+ 2H + The molecular weight of a chemical reaction is 98, and the valency is 2, then the equivalent weight of H 3 PO 4 is. This is accomplished with the following equation: Equation 1: E.E.W. Theoretical Equivalent weight of sulfuric acid (H 2 SO 4) = 49.03 g/equivalent of H + Reasoning: • When calculating Leak Off Test Equivalent Mud Weight, ROUND DOWN to one decimal place (for example: round down 11.76 ppg to 11.7 ppg; round down 13.89 ppg to 13.8 ppg). The equivalent weight of an element or radical is equal to the ratio of it's atomic weight or formula weight devided by it's valency. The formula to calculate the equivalent weight is given as: Equivalent Weight = Molecular weight/ Valency. 1 + Wt. Thanks. Equivalent weight of Oxidising and Reducing Agents. Learn more about Appendix 2: Molecular and Equivalent Weights on GlobalSpec.