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Question 6 1 pts What is the molarity of a solution made by adding 2.213 grams...
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...
i need help with these three questions Incorrect Question 2 0/1.25 pts 0.678 g of KHP...
i need help with these three questions
Incorrect Question 2 0/1.25 pts 0.678 g of KHP is used to standardize a NaOH solution. If it took 31.55 mL of NaOH to neutralize the KHP, what is the concentration of the NaOH solution? The molar mass of KHP is 204.22 g/mol. KHP + NaOH --> NaKP + H2O Give the answer to 3 sig figs and use units of M 0.0214 Unanswered Question 3 0/1.25 pts A 25.00 mL HCl sample...
Molarity for NaOH = 0.0873 2. In a second titration with the same solution of NaOH as used in Question #1, the student...
Molarity for NaOH = 0.08732. In a second titration with the same solution of NaOH as used in Question #1, the student weighs out a sample of KHP of 0.359 g. Calculate the volume of the NaOH solution needed to neutralize this sample of KHP. 3. A monoprotic weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction. 4. If K, for the weak acid, HA is 1.8...
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...
Question 18 8 pts What is the molarity of a solution that contains 28.4 grams of...
Question 18 8 pts What is the molarity of a solution that contains 28.4 grams of CuBr2 dissolved in a total volume of 255 mL of solution? (Show all your work!!!!!) 12pt Paragraph Β Ι Ο Α 2 Tv р 0 O words Question 19 6 pts If you start with 45.3 g CO2, how many molecules of CO2 do you have? (Show all your work!!!!!!!!!!!) 12pt Paragraph Β Ι Ο Α & Tv р O words
I need it right now, please help me?? PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
i need help with 1-6 Carlos Chapter 9 Practice Problems t. A solution is made by dissolving 50.0 grams of HCI in enough water to give 2500 ml. of selutien. a) What is the molarity of the solution?...
i need help with 1-6
Carlos Chapter 9 Practice Problems t. A solution is made by dissolving 50.0 grams of HCI in enough water to give 2500 ml. of selutien. a) What is the molarity of the solution? b) what is the % concentration (w/v) of the solution? 2. How many grams of a protein are there in 275 mL of a 0.00%(wmor a protein soluton? 3. How many grams of NaoH are there in 855 mL of a 350...
Question 31 2 pts What is the molarity of a solution containing 16.7 grams of HCl...
Question 31 2 pts What is the molarity of a solution containing 16.7 grams of HCl in 1500 mL of solution? 0.000305 M 0 111M O 0.0111M 0.305 M 2 pts Question 32 Given: HSO32- + HSO42- =H2SO3 + SO42- In the forward reaction, HSO3+ is acting as a Bronsted acid In the reverse reaction, SO42- is acting as a Bronsted acid In the reverse reaction, H2SO3 is acting as a Bronsted base In the forward reaction, HSO41 is acting...
help with all 6 questions please Question 24 1 pts An isotonic solution of NaCl is...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
What would be for the mol reacted,, mol NH4X in sample, and yhr average molar mass?...
What would be for the mol reacted,, mol NH4X in sample, and yhr
average molar mass?
CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
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...
i need help with these three questions
Incorrect Question 2 0/1.25 pts 0.678 g of KHP is used to standardize a NaOH solution. If it took 31.55 mL of NaOH to neutralize the KHP, what is the concentration of the NaOH solution? The molar mass of KHP is 204.22 g/mol. KHP + NaOH --> NaKP + H2O Give the answer to 3 sig figs and use units of M 0.0214 Unanswered Question 3 0/1.25 pts A 25.00 mL HCl sample...
Molarity for NaOH = 0.08732. In a second titration with the same solution of NaOH as used in Question #1, the student weighs out a sample of KHP of 0.359 g. Calculate the volume of the NaOH solution needed to neutralize this sample of KHP. 3. A monoprotic weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction. 4. If K, for the weak acid, HA is 1.8...
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...
Question 18 8 pts What is the molarity of a solution that contains 28.4 grams of CuBr2 dissolved in a total volume of 255 mL of solution? (Show all your work!!!!!) 12pt Paragraph Β Ι Ο Α 2 Tv р 0 O words Question 19 6 pts If you start with 45.3 g CO2, how many molecules of CO2 do you have? (Show all your work!!!!!!!!!!!) 12pt Paragraph Β Ι Ο Α & Tv р O words
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
i need help with 1-6
Carlos Chapter 9 Practice Problems t. A solution is made by dissolving 50.0 grams of HCI in enough water to give 2500 ml. of selutien. a) What is the molarity of the solution? b) what is the % concentration (w/v) of the solution? 2. How many grams of a protein are there in 275 mL of a 0.00%(wmor a protein soluton? 3. How many grams of NaoH are there in 855 mL of a 350...
Question 31 2 pts What is the molarity of a solution containing 16.7 grams of HCl in 1500 mL of solution? 0.000305 M 0 111M O 0.0111M 0.305 M 2 pts Question 32 Given: HSO32- + HSO42- =H2SO3 + SO42- In the forward reaction, HSO3+ is acting as a Bronsted acid In the reverse reaction, SO42- is acting as a Bronsted acid In the reverse reaction, H2SO3 is acting as a Bronsted base In the forward reaction, HSO41 is acting...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
What would be for the mol reacted,, mol NH4X in sample, and yhr
average molar mass?
CALCULATIONS A. NaOH Preparation: Approximate molarity of NaOH 0.48 M B. NaOH Standardization: Trial # Mass of KHP E 1.7249 1.9569 1.8799 Volume of NaOH 18.58 L 20.58mLihat 19.71 mL Molarity of NaOH 0.4544 M 0.4654M 0. 3 M 0.4668M Average molarity of NaOH: 0.4668 M 0.4622 M C. Molar Mass of NH X Salt 1. Volume of NaOH 0.025 0.025 0.025L 2. Molarity...
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