Illustrated Guide to Home Chemistry Experiments

(Amelia) #1

218 DIY Science: Illustrated Guide to Home Chemistry Experiments


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q 1 : What effect did you observe surface area to have on reaction rate?


q: 2 Use the ruler to measure the diameter and thickness of a tablet. Calculate its approximate surface area. Make the same
calculation for surface area of the quartered tablet. Does the increase in reaction rate you observed with the quartered tablet
approximately correspond to the increase in surface area? If not, propose an explanation.


q: 3 Most fizzy tablet remedies direct the user to dissolve two tablets in a glass of water. Why don’t they simply make the tablets
larger and recommend dissolving only one of the larger tablets?

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