Alka-selzer and Vinegar Experiment Setup Using PASCO’s Advanced Chemistry Sensor makes it easy to quantity and analyze reactions in solution. Place pH, Conductivity and Stainless Steel Temperature probes into a Beaker with ~60 mL vinegar and ~60 mL Distilled water Monitor Home Screen (to show all possible measurement types). Build page with pH v. Time, pH Digits and text box displays START collecting data. Add Alka-Seltzer After reaction STOP data and show Temp v Time and Conductivity v Time Create a multiple-y axis display of temp, pH and Conductivity v. Time Highlights Mutlimeasure sensor with simultaneous measurements of pH, temperature and conductivity Incorporation of content topics such as thermochemistry, stoichiometry, electrolytes, and acids and bases Multiple Y-axis graphing Featured Products Advanced Chemistry Sensor (PS-2172)

Blue Dye and Bleach Experiment Setup Using PASCO’s Colorimetrer makes it easy to quantity and analyze colored solutions and the rates of reactions Blank the colorimeter with a cuvette of distilled water Monitor Home screen (to show all possible measurement types) Fill the beaker with blue dye, and then fill the cuvette with the blue food dye from the beaker. Insert cuvette into colorimeter Select appropriate wavelength based on Absorbance (Abs) data. Build a page of Abs v Time and Abs digits of selected wavelength Add 3-mL of bleach to the beaker Fill a second cuvette with the Blue Dye w/ bleach Insert into colorimeter and START collecting data Create new calculated data of natural log of Absorbance and and 1/Abs Create new graphs of lnAbs, 1/Abs and Abs v Time Use linear fit tool find straightest line Highlights Mutlimeasure sensor with simultaneous measurements of Absorbance and Transmittance Incorporation of content topics such as Beer’s Law and Kinetics. Displaying Calculated Data Multiple Y-axis graphing Featured Products Colorimeter (PS-2121)

Lab Activities Chemistry Through Inquiry

Advanced/College Chemistry Lab Activities