I suppose to calculate titration on this experiment but I cant figure it out, i am really confused. Preparation of NaHCO3 step 1: Mass out approximately 2.50 grams of baking soda (NaHCO3) and record the exactmass in your notes.(You’ll need this value for your calculations!) I measured exactly 2.50 grams step 2: Transfer the baking soda to a 100 mL graduated cylinder and add a small amount of water to dissolve. step 3: Add water up to a total volume of 95 mL. Record the exact volume in your notes. I had an exact volume of 95mL. step4: Use the exact mass of NaHCO3 and total volume of the solution to calculate its molarity. Performing the Titration step 1: Using a 10 mL graduated cylinder, transfer about 3.0 mL of white vinegar to a clear plastic cup. Record the exact volume used. I measured exactly 3.0mL step 2: Transfer about 2 mL of the red cabbage indicator juice to the same cup. At this point, the color of the solution should be a pink color. step 3: Using a 60 mL syringe, draw up about 50.0 mL of the previously prepared NaHCO3solution. Record the initial volume of NaHCO3 solution in the syringe. (Note: there may be air in the syringe. Just record the volume of NaHCO3 solution present, not including the volume of air.) step 4: Using one hand, began to slowly titrate (add) the NaHCO3 solution to the white vinegar solution by pushing down slowly on the syringe plunger while using your other hand to mix. step 5: Continue titrating with NaHCO3 solution until the pH of the solution reaches neutral pH (a blue-purple color, see Figure 2 below). Record the final volume of NaHCO3 solution left in the syringe. Repeat steps 1 - 4 two more times for a total of three trials. i don t know where to plug in my data and what formula to use. all my initial volume of each trial was 50.0ml trial 1: final volume was 38.0mL, volume added: 12mL trial 2: final volume was 38.5mL, volume added: 11.5mL trial 3: final volume was 37.5mL, volume added: 12.5m
I suppose to calculate titration on this experiment but I cant figure it out, i am really confused.
Preparation of NaHCO3
step 1: Mass out approximately 2.50 grams of baking soda (NaHCO3) and record the exactmass in your notes.(You’ll need this value for your calculations!) I measured exactly 2.50 grams
step 2: Transfer the baking soda to a 100 mL graduated cylinder and add a small amount of water to dissolve.
step 3: Add water up to a total volume of 95 mL. Record the exact volume in your notes. I had an exact volume of 95mL.
step4: Use the exact mass of NaHCO3 and total volume of the solution to calculate its molarity.
Performing the Titration
step 1: Using a 10 mL graduated cylinder, transfer about 3.0 mL of white vinegar to a clear plastic cup. Record the exact volume used. I measured exactly 3.0mL
step 2: Transfer about 2 mL of the red cabbage indicator juice to the same cup. At this point, the color of the solution should be a pink color.
step 3: Using a 60 mL syringe, draw up about 50.0 mL of the previously prepared NaHCO3solution. Record the initial volume of NaHCO3 solution in the syringe. (Note: there may be air in the syringe. Just record the volume of NaHCO3 solution present, not including the volume of air.)
step 4: Using one hand, began to slowly titrate (add) the NaHCO3 solution to the white vinegar solution by pushing down slowly on the syringe plunger while using your other hand to mix.
step 5: Continue titrating with NaHCO3 solution until the pH of the solution reaches neutral pH (a blue-purple color, see Figure 2 below). Record the final volume of NaHCO3 solution left in the syringe. Repeat steps 1 - 4 two more times for a total of three trials.
i don t know where to plug in my data and what formula to use.
all my initial volume of each trial was 50.0ml
trial 1: final volume was 38.0mL, volume added: 12mL
trial 2: final volume was 38.5mL, volume added: 11.5mL
trial 3: final volume was 37.5mL, volume added: 12.5mL
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