In this fun 90 minute activity, students will measure the amount of aspirin in a tablet by titration with .100M NaOH. This product includes a) power point presentation of the process for day 1 in which the teacher titrates the first tablet with the class b) student lab sheet c) student data tables for lab books if you use them and d) a follow up quiz in which students titrate an unknown solution of HCl with the same solution of NaOH.
Students will use mathematics to determine the moles and then mass of aspirin in a tablet and compare it to the value on the bottle. My students love this experiment because they feel like they are doing “real” science. I use it in my pre-AP chemistry class, but the instructions are clear enough to use with on-level chemistry as well if they can do basic mole calculations.
• Hands on experience
• Cooperative Learning
• Teacher instructions and set up; solution calculations
• Reinforcement of difficult concepts
• Includes a power point presentation and follow up quiz
• Student handouts
Keywords: molarity, molality, concentration, pH, neutralization, chemical reaction, balancing equations, reactant, reagent, product, titration, aspirin, chemistry, acid, base, dilution