When carrying out the titration of KHP with NaOH solution, how will you know when the...
When carrying out the titration of KHP with NaOH solution, how will you know when the titration has reached the endpoint? Be as specific as possible. What will you look for? Do not simply say color change
Homework Answers
In this titration indicator used is phenolphthalein. The endpoint is obtained when a faint pink color persists for around 30 seconds, throughout the solution in the conical flask. Be careful about overshooting of the endpoint. If you have exceeded the endpoint intense pinkish-red color is seen.
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When carrying out the titration of KHP with NaOH solution, how
will you know when the...
You perform your first titration using your NaOH with a KHP solution. Your KHP solution is...
You perform your first titration using your NaOH with a KHP solution. Your KHP solution is made with 0.5093 g of KHP. The initial amount of NaOH in your pipette is 15.43 mL and the final amount in your buret is 35.38 mL when the indicator changes color. Determine the concentration of your NaOH solution. Write your answer to four decimal places without units.
Standardization of NaOH solution experiment: A 0.75 g sample of pure acid KHP was titrated to...
Standardization of NaOH solution experiment: A 0.75 g sample of pure acid KHP was titrated to phenolphthalein endpoint using 45.34 ml NaOH of unknown concentration. The formula weight of pure KHP is 204.22g/mol. Write the chemical equation for the neutralization reaction, indicate the color change of the indicator at the endpoint, and calculate molarity of the NaOH solution. Show your work. 1. Chemical equation ------------- 2. Endpoint color change ---- 3. NaOH molarity --------- Determine percent purity of impure KHP...
NaOH was standardized by titration against a standard acidic solution of potassium hydrogen phthalate (KHP). 0.4798...
NaOH was standardized by titration against a standard acidic solution of potassium hydrogen phthalate (KHP). 0.4798 g of KHP were dissolved in 100 ml of water to prepare the standard KHP solution. a) What is the molar mass of KHP? (you need to look up its formula and calculate its molar mass from the periodic table). b) If 45.22 ml of sodium hydroxide were required to neutralize the KHP solution, what is the molarity of NaOH?
grams of KHP 0.6413 mL NaOH needed to titrate KhP to endpoint 38.80 Grams of unknown...
grams of KHP 0.6413
mL NaOH needed to titrate KhP to endpoint 38.80
Grams of unknown acid: 1.5106
mL NaOH needed to titrate unknown acid to endpoint
33.55
need to know molarity of NaOH solution and Molar mass of
unknown acid. Please help and show work!
CHEM 265 LAB EXPERIMENT NUMBER 4 DETERMINATION OF THE MW OF AN UNKNOWN ACID This experiment utilizes a titration to determine the molecular weight of an unknown acid. In this experiment, the endpoint of...
4. Knowing that one mole of KHP, C3H5O4K, reacts with one mole of NaOH, what mass of KHP is required to neutralize 30.0...
4. Knowing that one mole of KHP, C3H5O4K, reacts with one mole of NaOH, what mass of KHP is required to neutralize 30.0 mL of the 0.10 M NaOH solution? 5. If 24.5 mL of the 0.10 M NaOH solution is required to reach the endpoint in a titration with an unknown monoprotic acid, how many moles of the acid were present?
How do I determine the blank columns? KHP is potassium hydrogen phthalate. The amount of KHP...
How do I determine the blank
columns? KHP is potassium hydrogen phthalate. The amount of KHP was
placed in a beaker mixed in DH2O and phenolphthalein and then 0.1M
NaOH was titrated in until a color change was observed, indicating
the endpoint.
please help me speciqlly with 11. 12. 13. 14 Experiment 7, Analysis of KHP by titration...
please help me speciqlly with 11. 12. 13.
14
Experiment 7, Analysis of KHP by titration with NaOH Wright College, Department of Physical Science and Engineering In this experiment, you will determine the amount (percent) of potassium hydrogen phthalate (KHP) that is in an impure sample. You will determine the percent of KHP via titration using NOH with known inolarity. The reaction will follow, KHCgH00, (aq) + NaOH (aq) ---------> KNaCHO, (aq) + H20 (I) At the end point, the...
Standardization of NaOH: Acid Base Titration Objective: In this lab, you will accurately determine the concentration...
Standardization of NaOH: Acid Base Titration Objective: In this lab, you will accurately determine the concentration of a solution of sodium hydroxide (NaOH) using a 0.500M potassium hydrogen phthalate (KHP) standard solution. Background: Acid–Base Titrations When an acid reacts with a base, a neutralization reaction occurs. The H+ ions from the acid and the HO– ions from the base combine to form water and are therefore neutralized. The other product of reaction is a salt. For example, hydrochloric acid reacts...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a sol...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a solution that is 50% by weight NaOH is required to make 400 mL of 0.1M NaOH solution? 3. The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 300 mL of 0.1M NaOH solution? 4. Why does weighing by difference...
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known...
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5100 Volume of NaOH required to neutralize...
Standardization of NaOH solution experiment: A 0.75 g sample of pure acid KHP was titrated to phenolphthalein endpoint using 45.34 ml NaOH of unknown concentration. The formula weight of pure KHP is 204.22g/mol. Write the chemical equation for the neutralization reaction, indicate the color change of the indicator at the endpoint, and calculate molarity of the NaOH solution. Show your work. 1. Chemical equation ------------- 2. Endpoint color change ---- 3. NaOH molarity --------- Determine percent purity of impure KHP...
NaOH was standardized by titration against a standard acidic solution of potassium hydrogen phthalate (KHP). 0.4798 g of KHP were dissolved in 100 ml of water to prepare the standard KHP solution. a) What is the molar mass of KHP? (you need to look up its formula and calculate its molar mass from the periodic table). b) If 45.22 ml of sodium hydroxide were required to neutralize the KHP solution, what is the molarity of NaOH?
grams of KHP 0.6413
mL NaOH needed to titrate KhP to endpoint 38.80
Grams of unknown acid: 1.5106
mL NaOH needed to titrate unknown acid to endpoint
33.55
need to know molarity of NaOH solution and Molar mass of
unknown acid. Please help and show work!
CHEM 265 LAB EXPERIMENT NUMBER 4 DETERMINATION OF THE MW OF AN UNKNOWN ACID This experiment utilizes a titration to determine the molecular weight of an unknown acid. In this experiment, the endpoint of...
4. Knowing that one mole of KHP, C3H5O4K, reacts with one mole of NaOH, what mass of KHP is required to neutralize 30.0 mL of the 0.10 M NaOH solution? 5. If 24.5 mL of the 0.10 M NaOH solution is required to reach the endpoint in a titration with an unknown monoprotic acid, how many moles of the acid were present?
How do I determine the blank
columns? KHP is potassium hydrogen phthalate. The amount of KHP was
placed in a beaker mixed in DH2O and phenolphthalein and then 0.1M
NaOH was titrated in until a color change was observed, indicating
the endpoint.
please help me speciqlly with 11. 12. 13.
14
Experiment 7, Analysis of KHP by titration with NaOH Wright College, Department of Physical Science and Engineering In this experiment, you will determine the amount (percent) of potassium hydrogen phthalate (KHP) that is in an impure sample. You will determine the percent of KHP via titration using NOH with known inolarity. The reaction will follow, KHCgH00, (aq) + NaOH (aq) ---------> KNaCHO, (aq) + H20 (I) At the end point, the...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a solution that is 50% by weight NaOH is required to make 400 mL of 0.1M NaOH solution? 3. The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 300 mL of 0.1M NaOH solution? 4. Why does weighing by difference...
1. A solution of sodium hydroxide (NaOH) was standardized against potassium hydrogen phthalate (KHP). A known mass of KHP was titrated with the NaOH solution until a light pink color appeared using phenolpthalein indicator. Using the volume of NaOH required to neutralize KHP and the number of moles of KHP titrated, the concentration of the NaOH solution was calculated. Molecular formula of Potassium hydrogen phthalate: HKC8H404 Mass of KHP used for standardization (g) 0.5100 Volume of NaOH required to neutralize...
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