Chemical equation calculations 11 in an experiment, 0327 g of zinc metal reacts to produce 0407 g of zinc oxide using the conservation of mass law how many moles of hydrogen iodide are produced from 100 mol of iodine. 1 in the reaction between zinc and iodide, why is zinc in excess and iodine limiting using molar mass 2 when would zinc be the limiting reactant instead of excess 3 determine the empirical formula of solid zinc iodide and does varying the masses of the reactants affect it. Calculate empirical formula when given mass data return to mole table of contents calculate empirical formula when given percent composition data. Using the reaction between zinc and hydrochloric acid to determine the empirical formula of zinc chloride. Determination of empirical formulas in this lab you will synthesize zinc iodide from zinc metal and solid iodine you will also determine the formula of an unknown.
Formulas and nomenclature of ionic and covalent compounds adapted from mcmurry/fay, section 210 zinc: zn 2+ zinc ion replacing the first element in the formula with another element from the same group gives a polyatomic ion with the same charge. Make sure that the formula used is neatly labeled and that the correct units and significant figures are included calculate the volume, in milliliters, of the standardized naoh solution used in each titration performed empirical formula of zinc iodide. Stoichiometric determination: empirical formula of copper chloride background procedure calculations background empirical formula: the simplest whole-number ratio in which different kinds of atoms combine to form a compound (atoms combining as single, distinct units. Experiment 9 empirical formula of zinc iodide objectives upon completion of this experiment, students should have learned: 1 the law of conservation of mass. Empirical formula of zinc iodide - oxygen essay example experiment 9 empirical formula of zinc iodide objectives upon completion of this experiment, students should have learned: 1 - empirical formula of zinc iodide introduction.
Essay empirical formula of zinc iodide experiment 9 empirical formula of zinc iodide objectives upon completion of this experiment, students should have learned: 1. Part 1: a determine empirical formula of zinc iodide by a combination reaction between zinc metal + iodine crystals b to show that mass is conserved in a chemical reaction. 1 experiment 12: empirical formula of a compound introduction chemical formulas indicate the composition of compounds a formula that gives only the simplest ratio. Use the masses of zinc iodine consumed in the reaction to calculate the percent composition of zinc and iodine in zinc iodide use the percent composition of zinc and iodine to determine the empirical formula of zinc iodide. Study chemistry 211 empirical formula of zinc iodide lab report notes.
Lab 2 - determination of the empirical formula of magnesium oxide goal and overview the quantitative stoichiometric relationships governing mass and amount will be studied using the combustion reaction of magnesium metal. This experiment involves the synthesis of a metal salt by direct reaction of a metal and a non-metal zinc powder is added to a solution of iodine in ethanol an exothermic redox reaction occurs, forming zinc iodide, which can be obtained by evaporating the solvent. A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols and numbers. Exp no 4 empirical formula of zinc iodide objective: to determine the empirical formula of the binary compound, zinc iodide, which the product of the reaction of the elements zinc and iodide.
Documents similar to zinc chloride empirical formula determine the chemical formula for zinc chloride35 biology for matriculation tutorial question atoms zinc chloride lab synthesis of zinc chloride matriculation chemistry ( reaction kinetics ) part 2. What is the experimental empirical formula of zinc chloride im stuck on this problem for my lab determine the simplest whole number ratio of moles of zinc used, to moles of chlorine reacted in the zinc chloride that was produced.
Does varying the masses of the reactants affect the empirical formula of zinc iodide chegg tutors makes it easy to find a great tutor and connect instantly 1 request help 2 get matched with a tutor 3 get live 1-on-1 help. Answerscom wikianswers categories science chemistry elements and compounds metal and alloys what is the limiting reactant in zinc iodide formula of zinc iodide is zni2 the equations below demonstrate this zn -- zn2+ + 2e- 2i + 2e- -- 2i- what is the empirical formula of zinc. Empirical formula of zinc iodide reference: general chemistry laboratory experiments, suzanne w slayden, 1999, 3rd edition, pages 31-35 purpose. I know that the empirical formula is zni2, but when we did the experiment, we got 012g of zn and 025g of i2 when calculated, the zinc to iodine ratio isn't 1:2 did i make errors in the experiment.
Experiment schedule - chem 111h determination of the empirical formula of a compound part b: determination of the empirical formula of a metal iodide (zinc reaction only) 17: pp 389 - 401 pp f46 - f50, f87 - f93 supplemental notes: sept 11.