Page 31 - Demo

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AP* CHEMISTRY
RECOMMENDED ITEMS
FOR THIS KIT
Separation of a Dye Mixture Using
Acidity of Beverages—Advanced Inquiry Laboratory Kit
Acid concentration in consumer beverages can be determined by titration with sodium hydroxide. Students begin with an activity to determine the proper indicator for titration of acetic acid. The results provide a model for guided-in- quiry design of a procedure to obtain titration curve data and calculate molar concentration of acid in a beverage. Experiments can be a cooperative class study or open-inquiry activities. Complete for 24 students working in pairs. AP7645 | $55.45
Flinn pH Meter
AP8673
Hydrion Ultrafast 0–14 pH Test Paper
AP5411
RECOMMENDED ITEMS
FOR THIS KIT
Colorimeter
TC1504
Flinn Multi-Sample Spectrophotometer
AP8502
Flinn Scientific Spectrophotometer
AP7026
Chromatography—Advanced Inquiry Laboratory Kit
All artificial food colors certified by the FDA for food, drugs and cosmetics come from just seven dyes. This advanced-inquiry lab uses paper chromatography to investigate factors that influence the sepa- ration of food dyes. Students begin by comparing the separation or resolution of FD&C dyes using solvents, then design an experiment to identify a solvent that gives maximum resolution of a dye mixture. Complete for 24 students working in pairs.
AP7661 | $61.70
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 quick Splatter Test demonstration, students complete a homework assign- ment and 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
Analysis of Food Dye in Beverages— Advanced Inquiry Laboratory Kit
In this advanced-inquiry lab, students use spec-
troscopy and graphical analysis to determine the dye concentration in a sports drink. Students first prepare a series of standard dilutions of an FD&C Blue 1 stock solution, then measure percent transmittance of each and graph the results in a Beer’s law calibration curve. Students then design experiments to determine the concentration of food dyes in consumer beverages. Complete for 24 students working in pairs.
AP7642 | $31.95
FLINN SCIENTIFIC
I AP* CHEMISTRY 29