Alka-selzer and VinegarExperiment 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 BleachExperiment 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