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2. Sodium hydroxide absorbs carbon dioxide from the atmosphere, which changes its concentration. In order to verify the exact concentration of NaOH that you make, you will need to standardize it. This is done by performing an acid-base neutralization titration. You will use potassium hydrogen phthalate (KHP) as your acid titrant. Use the steps below to calculate how you will make a KHP titrant. a. How many moles of NaOH would you find in 20 mL of your 0.1 M solution? b. The neutralization reaction between KHP and NaOH shown below. Using stoichiometry, how many moles of KHP would you need to neutralize the moles of NaOH in 20 mL (your answer in part 2a)? NaOH (aq) + KHP (aq) → H2O (I) + NaKP (aq) KHP has a molecular mass of 204.43 g/mol. How many grams does your answer in part 2b weigh? С. d. Take your answer in part 2c and multiply it by two. To make your solution for lab, you will dissolve that much KHP into 100 mL of distilled water What will the molaritu of

2. Sodium hydroxide absorbs carbon dioxide from the atmosphere, which changes its concentration. In order to verify the exact concentration of NaOH that you make, you will need to standardize it. This is done by performing an acid-base neutralization titration. You will use potassium hydrogen phthalate (KHP) as your acid titrant. Use the steps below to calculate how you will make a KHP titrant. a. How many moles of NaOH would you find in 20 mL of your 0.1 M solution? b. The neutralization reaction between KHP and NaOH shown below. Using stoichiometry, how many moles of KHP would you need to neutralize the moles of NaOH in 20 mL (your answer in part 2a)? NaOH (aq) + KHP (aq) → H2O (I) + NaKP (aq) KHP has a molecular mass of 204.43 g/mol. How many grams does your answer in part 2b weigh? С. d. Take your answer in part 2c and multiply it by two. To make your solution for lab, you will dissolve that much KHP into 100 mL of distilled water What will the molaritu of

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 70QAP: Three students titrate different samples of the same solution of HCI to obtain its molarity. Below...
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2. Sodium hydroxide absorbs carbon dioxide from the atmosphere, which changes its concentration. In order to verify the exact concentration of NaOH that you make, you will need to standardize it. This is done by performing an acid-base neutralization titration. You will use potassium hydrogen phthalate (KHP) as your acid titrant. Use the steps below to calculate how you will make a KHP titrant. a. How many moles of NaOH would you find in 20 mL of your 0.1 M solution? b. The neutralization reaction between KHP and NaOH shown below. Using stoichiometry, how many moles of KHP would you need to neutralize the moles of NaOH in 20 mL (your answer in part 2a)? NaOH (aq) + KHP (aq) → H2O (1) + NaKP (aq) С. KHP has a molecular mass of 204.43 g/mol. How many grams does your answer in part 2b weigh? d. Take your answer in part 2c and multiply it by two. To make your solution for lab, you will dissolve that much KHP into 100 mL of distilled water. What will the molarity of your KHP solution be?
Transcribed Image Text:2. Sodium hydroxide absorbs carbon dioxide from the atmosphere, which changes its concentration. In order to verify the exact concentration of NaOH that you make, you will need to standardize it. This is done by performing an acid-base neutralization titration. You will use potassium hydrogen phthalate (KHP) as your acid titrant. Use the steps below to calculate how you will make a KHP titrant. a. How many moles of NaOH would you find in 20 mL of your 0.1 M solution? b. The neutralization reaction between KHP and NaOH shown below. Using stoichiometry, how many moles of KHP would you need to neutralize the moles of NaOH in 20 mL (your answer in part 2a)? NaOH (aq) + KHP (aq) → H2O (1) + NaKP (aq) С. KHP has a molecular mass of 204.43 g/mol. How many grams does your answer in part 2b weigh? d. Take your answer in part 2c and multiply it by two. To make your solution for lab, you will dissolve that much KHP into 100 mL of distilled water. What will the molarity of your KHP solution be?
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