Materials computer 0050 m naoh vernier computer

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MATERIALScomputer0.050 M NaOHVernier computer interfacevarious cola soft drinks, decarbonatedLogger Prodistilled waterVernier pH Sensorring stand50 mL buretutility clamp100 mL graduated cylindermagnetic stirrer (if available) 250 mL beakerstirring barPROCEDURE1.Obtain and wear goggles.2.Use a graduated cylinder to measure out 40 mL of a decarbonated cola beverage and 60 mL of distilled water into a 250 mL beaker. CAUTION:Do not eat or drink in the laboratory.3.Place the beaker on a magnetic stirrer and add a stirring bar. If no magnetic stirrer is available, you need to stir with a stirring rod during the titration.
35 - 2Chemistry with VernierComputer 354.Connect the pH Sensor to the computer interface. Prepare the computer for data collection by opening the file “35 Phosphoric Acid” from the Chemistry with Vernierfolder of Logger Pro5.Use a utility clamp to suspend a pH Sensor on a ring stand as shown in Figure 1. Position the pH Sensor in the HCl solution and adjust its position so that it is not struck by the stirring bar.6.Obtain a 50 mL buret and rinse the buret with a few mL of the 0.050 M NaOH solution. CAUTION:Sodium hydroxide solution is caustic. Avoid spilling it on your skin or clothing. Dispose of the rinse solution as directed by your teacher. Use a utility clamp to attach the .

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