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Experiment 12 The Rate and Order of a Reaction

The rate equation for a reaction is determined in this experiment. Known quantities of solutions are mixed, and the time required for a change is recorded. (See the Kinetics chapter.) [Pg.290]

Use the buret to measure the volume of any gas formed (multiple measurements at different times may be required). [Pg.291]

Measure time intervals or record the time after mixing when an observable change occurs. NOTE When using a buret, an initial and a final measurement are always needed. [Pg.291]

Using the molar mass, calculate the moles of all weighed samples. The moles of substances are converted to molarities by dividing by the volume (in liters) of the solution. Molarities may also be determined from pipet or buret readings using the dilution equation. (If a buret is used, one of the volumes is calculated from the difference between the initial and final readings.) The dilution equation may be needed to calculate the concentration of each reactant immediately after all the solutions are mixed. [Pg.291]

If a gas is being generated, plot the volume of gas formed versus time. The volume of the gas formed is the difference between the initial buret reading and the buret reading at a particular time. The slope of this graph is the rate. [Pg.291]


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