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AYSWILE an SOV Conniines 4 Mole Ratios How can the coefficients in a chemical equation be interpreted? Why? A balanced chemical equation can tell us the number of reactant and product particles (ions, atoms, molecules or formula units) that are necessary to conserve mass during a chemical reaction. Typically when we balance the chemical equation we think in terms of individual particles. However, in real life the reaction represented by an equation occurs an unimaginable number of times. Short of writing very large numbers (10% or larger) in front of each chemical in the equation, how can we interpret chemical equations so that they more realistically represent what is happening in real life? In this activity you will explore the different ways a chemical reaction can be interpreted. Model 1 — A Chemical Reaction N,(g) + 3H,(g) > 2NH,(g) 1, Consider the reaction in Model 1. a. What are the coefficients for each of the following substances in the reaction? \ N, 3 H, 2 NH, 2. Consider each situation below as it relates to the reaction in Model 1. a, Calculate the amount of reactants consumed and products made. b, Record the ratio of N, to H, to NH,. Reduce the ratio to the lowest whole numbers possible. N, H, NH, __|Ratio N,:H,:NH, Consumed Consumed Produced (reduced) For a single reaction, how many % y jp Rae molecules of each substance would \ a 2 ha 3°32 be consumed or produced? ao Tor If the reaction occurred one hun- - f > : 2 dred times, how many molecules (Ge 3 OC 2429 (2352 would be consumed or produced? If th x At 4538 ti eee, Be the reaction occurre times, A s . how many molecules would be S38 Vole yolk \epe & consumed or produced? Mole Ratios 1 
