conclusions please Report which indicator you used along with the colors and pH

Question

conclusions please

Report which indicator you used along with the colors and pH interval where it changed Conclusion The data below represents points of a titration curve similar to the one that you made in the lab. Fill in the data table below and show your work for the calculations on a separate pi ece of paper. a. Start with 250 mL of 0.20 M HC1. What species are present and how many millimoles b. Add 30. mL of 0.50 M NaOH. What major species are present (ions) (there are 3) and c. Add 70.mL more of 0.50 M NaOH. What major species (ions) are present (there are 2) d. Add 50. ml. more of 0. 50 M NaOH. What major species (ions) are present (there are 3) (mmol) are present? how many mmol of are present? and how many mmol of are present? and how many mmol of are present? l species l mmol l species! mmol | Species l mmol Use the data that you have put in the boxes, as well as your own experimentally created titration curve to explain why the pH rises so drastically as the equivalence point is approached(or passed) 129

Explanation / Answer

Species mmol species mmol species mmol a H+ 50 Cl- 50 ----- ------- b Na+ 15 Cl- 15 H2O 15 c Na+ 50 Cl- 50 ----- -------- d Na+ 75 Cl- 50 OH- 25

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