(LO 11.4.2) A sample of KHP weighing 0.268 g is titrated with a NaOH solution. If 12.68 mL of NaOH are needed to reach the endpoint, the concentration of the NaOH solution is MM(KHP) = 204.22 g/mol MM(NaOH) = 40.00 g/mol Your Answer: Answer A Question 14 units Retake question (LO 11.1.5, 11.4.2) A sample of KHP weighing 0.268 g is titrated with NaOH solution and it takes 12.65 mL to reach the endpoint. If the next sample of KHP weighs 0.413 g, a reasonable expectation for the endpoint volume for the second sample is mL

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**Question 13:**

A sample of KHP weighing 0.268 g is titrated with a NaOH solution. If 12.68 mL of NaOH are needed to reach the endpoint, calculate the concentration of the NaOH solution.

- Molar Mass (MM) of KHP = 204.22 g/mol
- Molar Mass (MM) of NaOH = 40.00 g/mol

Your Answer:  
[Answer box] [units box]

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**Question 14:**

A sample of KHP weighing 0.268 g is titrated with NaOH solution and it takes 12.65 mL to reach the endpoint. If the next sample of KHP weighs 0.413 g, a reasonable expectation for the endpoint volume for the second sample is:

[Answer box] mL

---

Both questions involve titration, where you'll determine the concentration or volume of NaOH required to neutralize a known amount of KHP (potassium hydrogen phthalate). The calculations involve molar mass and stoichiometry to determine the unknown quantities.
Transcribed Image Text:**Question 13:** A sample of KHP weighing 0.268 g is titrated with a NaOH solution. If 12.68 mL of NaOH are needed to reach the endpoint, calculate the concentration of the NaOH solution. - Molar Mass (MM) of KHP = 204.22 g/mol - Molar Mass (MM) of NaOH = 40.00 g/mol Your Answer: [Answer box] [units box] --- **Question 14:** A sample of KHP weighing 0.268 g is titrated with NaOH solution and it takes 12.65 mL to reach the endpoint. If the next sample of KHP weighs 0.413 g, a reasonable expectation for the endpoint volume for the second sample is: [Answer box] mL --- Both questions involve titration, where you'll determine the concentration or volume of NaOH required to neutralize a known amount of KHP (potassium hydrogen phthalate). The calculations involve molar mass and stoichiometry to determine the unknown quantities.
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