Honors Chemistry Homework

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Presentation transcript:

Honors Chemistry Homework Sketch a graph of your pH curve. (include title and labeled axes!!!) Does your graph have specific regions? Identify the regions by labeling each of them with a letter

For your assigned region of the graph: Describe (briefly) the effect adding NaOH has on the pH of that region of the graph Draw a particle diagram to model what is present in the solution Make a BCA table for that region, assuming 5 moles of HCl are present in our sample for the start

Titration analysis questions… How would the calculated concentration of HCl be affected if… The volume of HCl released into the beaker was greater than 10.00 mL? Less than 10.00 mL 5 drops of base were released, changing the color of the solution, instead of 1 drop? The beaker you put your acid in had a few drops of water in it and wasn’t dry. Methyl orange (color change at pH = 4) were used instead of phenolphthalein (color change at pH = 9) Too much water was added when making the NaOH solution? Too little water was added?

Which point on the graph best represents the equivalence point of the titration? What is the volume of base needed to reach the equivalence point in this titration?