Marble Chips And Hydrochloric Acid Experiment Surface Area

For the same amount of mass smaller pieces of solid react faster as shown in figure 7 2. The powdered marble has much smaller solid pieces so there are many more surface molecules exposed to the hydrochloric acid. 2hcl aq caco 3 s cacl 2 aq co 2 g h 2 o l the reaction rates of both large marble chips and small marble chips can be compared see below.

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