Summary:
Put on any necessary personal safety equipment, and one person from each team should collaborate with people from other teams to create the NaOH solution. The other team members should focus on setting up the buret by rising it with distilled water as well as building the titration apparatus and preparing the HCl solution.
In order to prepare the NaOH solution, first take some solid NaOH and measure its mass. Then get a 250 mL volumetric flask and fill it about halfway with distilled water. Add the NaOH to the flask and mix it until it is dissolved. When the NaOH is completely dissolved, fill the rest of the flask up with distilled water until the 250 mL line has been reached. Calculate the concentration of the NaOH, and split the solution between the two teams at the station, pouring about half into two containers.
To prepare the HCl solution, measure some HCl and pour it into a Erlenmeyer flask. Make sure to record what type of solution you are using (A or B), and …show more content…
When color changes are seen after adding the NaOH, change the increment size to less than one mL, and swirl the flask to mix the solutions. As the solution grows more pink, add the NaOH solution one drop at a time, until the solution is a constant, faint, pink. Measure the amount of NaOH dispensed and calculate the molarity of the HCl solution.
If there is enough time to repeat, then rinse the Erlenmeyer flask with tap water, then distilled. Measure more HCl into the flask, making sure it is the same type of solution (A or B) used before. Fill the buret with NaOH and repeat the titration steps. Rinsing the buret with NaOH is not necessary.
To clean up, empty all leftover solutions down the sink with lots of running water. Disassemble the buret apparatus and rinse the buret and glassware with distilled water. Return everything back to its proper place, and then wash your hands.
Put on any necessary personal safety equipment, and one person from each team should collaborate with people from other teams to create the NaOH solution. The other team members should focus on setting up the buret by rising it with distilled water as well as building the titration apparatus and preparing the HCl solution.
In order to prepare the NaOH solution, first take some solid NaOH and measure its mass. Then get a 250 mL volumetric flask and fill it about halfway with distilled water. Add the NaOH to the flask and mix it until it is dissolved. When the NaOH is completely dissolved, fill the rest of the flask up with distilled water until the 250 mL line has been reached. Calculate the concentration of the NaOH, and split the solution between the two teams at the station, pouring about half into two containers.
To prepare the HCl solution, measure some HCl and pour it into a Erlenmeyer flask. Make sure to record what type of solution you are using (A or B), and …show more content…
When color changes are seen after adding the NaOH, change the increment size to less than one mL, and swirl the flask to mix the solutions. As the solution grows more pink, add the NaOH solution one drop at a time, until the solution is a constant, faint, pink. Measure the amount of NaOH dispensed and calculate the molarity of the HCl solution.
If there is enough time to repeat, then rinse the Erlenmeyer flask with tap water, then distilled. Measure more HCl into the flask, making sure it is the same type of solution (A or B) used before. Fill the buret with NaOH and repeat the titration steps. Rinsing the buret with NaOH is not necessary.
To clean up, empty all leftover solutions down the sink with lots of running water. Disassemble the buret apparatus and rinse the buret and glassware with distilled water. Return everything back to its proper place, and then wash your hands.