Page 32 - Demo

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AP® CHEMISTRY
Acid–Base Titrations— FlinnPREPTM Inquiry Lab
Students conduct a series of acid–base titra- tions and determine the concentrations of two unknowns. In the introductory activity, students qualitatively analyze an acid and base using pH paper, providing a model for a guided-inquiry experiment, during which students collect quantitative titration data on two acids and two bases using a buret and pH meter. One acid and one base
have known molarities and the others are unknown. Students graph titration curves from the collected data and determine the concentration of each unknown.
AP7656 | Lab Kit & Digital Content | $46.40
Green Chemistry Analysis of a Mixture— FlinnPREPTM Inquiry Lab
Students design a green chemistry exper- iment that measures the weight percent
of one compound in a mixture of two. An introductory activity verifies the decom- position reaction of a solid bicarbonate. Students review green chemistry principles and evaluate a stoichiometry lab procedure for prevention, atom economy and use and production of nontoxic materials.
AP7653 | Lab Kit & Digital Content | $26.05
Percent Copper in Brass— FlinnPREPTM Inquiry Lab
Students measure metal ion solution absor- bance at regular wavelength intervals and investigate the anion’s influence on absorption spectra. Students identify the wavelength, absorbance and concentration correlation for three ions in brass: copper, zinc and iron. Then students design and carry out an experiment to construct a calibration curve and determine the copper ion concentration in a solution prepared by dissolving brass in nitric acid. Students investigate the concentration range over which Beer’s law is valid and identify the optimum wavelength for analysis and deter- mine the mass percent of copper in brass. AP7643 | Lab Kit & Digital Content | $65.95
EL6029 | Digital Content Only
| $14.95
Designing a Hand Warmer— FlinnPREPTM Inquiry Lab
Students investigate the energy changes accompanying the formations of solutions for common laboratory salts, and then apply the results to design a hand warmer that is reliable, safe, nontoxic and inexpensive. The students begin by familiarizing themselves with the principles of calorimetry and heat of solution calculations. The results provide a model for the guided-inquiry challenge. Students are given a series of solids, along with their costs and individual Safety Data Sheets (SDSs). The challenge is to deter- mine the heat of solution for each solid and analyze the cost and safety information to propose a design for the best, all-around hand warmer.
AP7654 | Lab Kit & Digital Content | $50.35 EL6027 | Digital Content Only | $14.95
Chemical Bonding: Vibrant Colors and Determining Unknowns—
Wet/Dry Inquiry Lab for One Period
Watch students engage in an exciting guided-inquiry chemical bonding and intermolecular forces activity. After a Splatter Test demonstration, students complete an assignment to create a schematic flow chart as part of their procedure for lab day when they identify four unknown solids based on bond type. Dyed fabric colors are also observed and identified based on bonding and intermolecular forces. Complete for 24 students working in pairs.
AP8498 | $75.85
EL6017 | Digital Content Only
| $14.95
EL6022 | Digital Content Only
| $14.95
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FLINN SCIENTIFIC I AP® CHEMISTRY