- Materials The Following Materials Are Shown In The Photographs Of This Virtual Investigation 0 100 Mol L Naoh Aq D 1 (41.76 KiB) Viewed 37 times
- Materials The Following Materials Are Shown In The Photographs Of This Virtual Investigation 0 100 Mol L Naoh Aq D 2 (23.75 KiB) Viewed 37 times
- Materials The Following Materials Are Shown In The Photographs Of This Virtual Investigation 0 100 Mol L Naoh Aq D 3 (26.78 KiB) Viewed 37 times
- Materials The Following Materials Are Shown In The Photographs Of This Virtual Investigation 0 100 Mol L Naoh Aq D 4 (19.63 KiB) Viewed 37 times
- Materials The Following Materials Are Shown In The Photographs Of This Virtual Investigation 0 100 Mol L Naoh Aq D 5 (23.29 KiB) Viewed 37 times
- Materials The Following Materials Are Shown In The Photographs Of This Virtual Investigation 0 100 Mol L Naoh Aq D 6 (19.66 KiB) Viewed 37 times
- Materials The Following Materials Are Shown In The Photographs Of This Virtual Investigation 0 100 Mol L Naoh Aq D 7 (43.67 KiB) Viewed 37 times
step 4: step 5: step 6: Remove the burette from the clamp Carefully tit the burette to wash the inside. Carefully wash the burette. Close the stopcock, then fill the burette one-third full with water from the wash bottle Tit the burette sideways to wash the inside walls, then tit it vertically and hold it over the 250-ml beaker, which will serve as the waste beaker Open the stopcock and transfer the wash water from the burette into the waste beaker Repeat this step one more time Place the burette into the burette clamp attached to the ring stand Close the stopcock place the funnel into the upper end of the burette, and add approximately 15-20 mL of NaOH(aq) to the burette Remove the funnel from the top of the burette
step 7: step 8: Carefully remove the burette from the clamp, then tit and wash the inside walls with the sodium hydroxide solution. Return the burette to the clamp, position the waste beaker under the burette and open the stopcock to drain the burette Remove the burette from the clamp Carefully hit the burette to wash the inside Close the stopcock replace the funnel in the upper end of the burette, and add NaOH(aq) to fill the burette so that the liquid level is within the range of 0 to 5 mL
step 9: Position the burette so that the level of the NaOH(aq) is at eye level, and measure the position of the lower surface of the meniscus (You should be able to measure this to at least one decimal place, however, he decimal places is preferred You might find that using a card with a dark line on it improves the visibility of the bottom of the meniscus ) Record this level in your table step 10: M Results: Using either a graduated cylinder or a pipette, transfer 100 mL of the acid solution to the 125 ml Erlenmeyer Bask Measuring the acid solution Transferring the acid to the Bask part. 512PM
Transferring the acid to the flask step 11: Add 3 to 4 drops of bromothymol blue (or phenolphthalein). Record the colour of the indicator in the acid sample in your table step 12: Position the Erlenmeyer flask containing the acid and indicator under the burette, then open the stopcock, and add a small amount of the solution from the burette to the contents of the Black As you add solution from the burette, swirl the contents of the flask to ensure mixing. Repeat, adding small amounts of solution from the burette to the flask until the indicator changes colour Record this colour in your table Add the first drop of the base
step 13: step 14 step 150 Results: The indicator has changed colour Once a permanent colour change has been reached, position the burette so that the level of the NaOH(aq) is at eye level then measure the position of the lower surface of the meniscus Record this level in your table Results: Transfer the contents of the Erlenmeyer flask to the waste beaker, rinse the flask with some water from the wash bottle, and repeat steps 8 to 13 to obtain data from three more trials that agree within 0.2 m Disassemble, wash and retum equipment to its proper location Repeat step 3 to wash the burette
Complete a virtual lab investigation where you will perform a titration and analyze the data you collect. You will use the data from this investigation to complete the following table and questions. (1/4 mark each - 5) Trial Volume of Hl(aq) titrated (ml) Final volume of 0.100 mol/L NaOH(aq) (ml) Initial volume of 0.100 mol/L NaOH(aq) (ml) Volume of 0.100 mol/L NaOH(aq) used (ml) Colour of indicator 1. 45 mL Lab: Titration of an Acid with a Base Use the data collected from the virtual titration experiment you completed to calculate the concentration of the hydroiodic acid solution tested. (6 marks) 100 g m blue green green green