November 27, 2013

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. 1 + Wt. Calculating equivalent mass Defining the equivalent of a substance. 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 formula to calculate the equivalent weight is given as: Equivalent Weight = Molecular weight/ Valency. Thanks. Print Equivalent Weight: Definition & Formula Worksheet 1. 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. 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. Equivalent weight of Oxidising and Reducing Agents. 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. Any help appreciated. Name Formula Molecular Weight Equivalent Weight Aluminum Sulfate Al 2(SO 4) 3 18H 2O 666. 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 … It is essential to determine the Epoxy Equivalent Weight (E.E.W.) g eq−1kg eq−1. What is the correct setup to determine the equivalent weight (EW) of fluorine? This is accomplished with the following equation: Equation 1: E.E.W. of the mixture to determine proper stoichiometric ratios with the curing agent. Learn more about Appendix 2: Molecular and Equivalent Weights on GlobalSpec. • 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). 2 E.E.W. 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. Equivalent weight depends on type of the substance. of Mixture = Total Weight of Mixture Wt. 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. 2 Example 1: A mixture of 80% Liquid Epoxy Resin (E.E.W. The weight of a compound that contains ONE EQUIVALENT of a proton (for acid) or ONE EQUIVALENT of an hydroxide (for base). Fluorine is the ion (F-1) and its molar mass is 19 g.