About how many grams of KPH will you be using in each trial of this experiment?
0.2-0.3 grams
What acid-base indicator will you be using in this experiment?
Phenolphthalein
How will you know you reached the end point of your titration?
The color will change from colorless to pink as sodium hydroxide is added to KHP.
If 22.46 mL of an N a O H solution is need to neutralize 0.550 grams of KHP, what is the molarity of the N a O H solution assuming excess HCl was not added?
0.550 g KHP x (1 mol KHP / 204.22 g KHP) = 0.00269 mol KHP = 0.00269 mol H+
0.00269 mol NaOH x (1 / 22.46 mL NaOH solution) x (1000 mL / 1 L) = 0.120 M NaOH
Answer: 0.120 M
When titrating the KHP, what will you do if you added too much sodium hydroxide (several drops after it turns pink)?
Add additional hydrochloric acid drop wise until the solution turns clear and then add sodium hydroxide drop wise until the color just turns pink.
What safety equipment must you wear when performing this experiment?
All of the above