Briefly identify the hazards you must be aware of before you work with: H_2C_2O_
ID: 1073051 • Letter: B
Question
Briefly identify the hazards you must be aware of before you work with: H_2C_2O_4 solutions KMnO_4 solutions Briefly explain the meaning of the following terms as they pertain to this experiment. reaction rate rate equation rate constant overall reaction order The method of initial rates involves substituting the initial reactant concentrations into rate calculations. When you do the experiment, you will be given KMnO_4 and H_2C_2O_4 solutions of known concentrations. Will you use these known concentrations in your rate calculations? Briefly explain.Explanation / Answer
1. H2C2O4 and KMnO4 are toxic, so don't drink them. You shouldn't be drinking anything in the lab anyway. If you get KMnO4 on your skin, the skin will turn darker, but the stain will go away after a week or so. You shouldn't be getting chemicals on your hands anyway.
Reaction Rate The Reaction Rate for a given chemical reaction is the measure of the change in concentration of the reactants or the change in concentration of the products per unit time.
rate equation rate equation for a chemical reaction is an equation that links the reaction rate with concentrations or pressures of reactants and constant parameters
Rate constant It is a coefficient of proportionality relating the rate of a chemical reaction at a given temperature to the concentration of reactant (in a unimolecular reaction) or to the product of the concentrations of reactants.
overall order of the reaction
The overall order of the reaction is found by adding up the individual orders. For example, if the reaction is first order with respect to both A and B (a = 1 and b = 1), the overall order is 2. We call this an overall second order reaction in the rate law equation rate = K[A]^a [B]^b
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