Homework Answers
Equivalence point,: The point in a titration at which enough amount of titrant is added to analyte solution to neutralize.
End point: It indicates the equivalence point generally by using indicator.
Standard solution: A solution which contains exactly the know n concentration of substance in the solution.
NaOh is strong base can react with strong acid HCl and it is a neutralization reaction ...to know the concentration of NaOH standard HCl is used.
Phenolphthalein is added as indicator to show end point. It shows pink colour in basic and color less in acidic media.
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Dariele blas Pre-Laboratory Assignment 2. Brieily define the following terms as they pertain to this e...
Pre-Laboratory Assignment 1. Briefly describe the procedure you will follow to prepare your excess NaOH solution...
Pre-Laboratory Assignment 1. Briefly describe the procedure you will follow to prepare your excess NaOH solution for safe disposal 2. Distinguish between the following pairs of terms as they pertain to this experiment. (a) monoprotic and diprotic acids (b) equivalence point and end point of a titration (c) half-equivalence point and equivalence point of a titration, 3. Following the Procedure of this experiment, a student titrated 0.653 g of an unknown weak, monoprotic acid with 0.100M NaOH and monitored the...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and ritration and point. Do these two points in a titration occur when the same volume of titrant has been added? Explain 3. A student standardized a NaOH solution using KHC.H.O.. Three different KHC&H.O. samples were dissolved in water and titrated with the same NaOH solution, each to a phenolphthalein end point. The pertinent reaction is: KHC H404 aq)...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and bitration end point. Do these two points in a titration occur when the same volume of titrant has been added? Explain. 3. A student standardized a NaOH solution using KHC.H.O.. Three different KHC.H.O. samples were dissolved in water and titrated with the same NaOH solution, each to a phenolphthalein end point. The pertinent reaction is: KHC3H404(aq) + NaOH(...
Pre-laboratory Assignment Name: Read the experiment and answer the following questions as directed by your instructor....
Pre-laboratory Assignment Name: Read the experiment and answer the following questions as directed by your instructor. 1. In this experiment, you will use potassium hydrogen phthalate (abbreviation KHP, formula HKCH.0) to standardize (to determine the concentration precisely of) the NaOH solution. What is the molar mass of KHP? 2. In Part 1, you will titrate a weighed mass of KHP (dissolved in water) with the unknown NaOH solution. What data must you collect in order to find [NaOH)? List the...
-e-laboratory Assignment Name: ead the experiment and answer the following questions as directed by your instructor...
-e-laboratory Assignment Name: ead the experiment and answer the following questions as directed by your instructor A student is performing a titration. Diagrams of the buret at the beginning and the end of the titration are shown at right. To the correct number of significant figures, what is the initial volume, the final volume, and the volume of solution added during the titration? 16 2) Formic acid (HCOOH) is a weak acid with K. - 1.8 x 10-4. a) Write...
Name Desk Date, Laboratory Instructor Titration Curves of 26 Pre-lab Polyprotic Acids Questions t...
Name Desk Date, Laboratory Instructor Titration Curves of 26 Pre-lab Polyprotic Acids Questions tory, you should be able to answer the Before beginning this experiment in the labora following questions. 1. What is a polyprotic acid? If 10.7 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,CH,O,), how many milliliters of NaOH are required to completely neutralize this solution? 2. 3. How many millimoles of NaOH will react completely...
Titration Curves of Polyprotic Acids Pre-lab Questions Before beginning this experiment in the laboratory, you should...
Titration Curves of Polyprotic Acids Pre-lab Questions Before beginning this experiment in the laboratory, you should be able to answer the following questions. 1. What is a polyprotic acid? 2. If 10.70 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,C H307), how many milliliters of NaOH are required to completely neutralize this solution? 3. How many millimoles of NaOH will react completely with 50 mL of 1.5 MH,C20,?...
Acid-Base Titration PRE-LABORATORY ASSIGNMENT This assignment must be completed in your notebook prior to attending pre-lab...
Acid-Base Titration PRE-LABORATORY ASSIGNMENT This assignment must be completed in your notebook prior to attending pre-lab lecture. 1. Sketch a picture of a 50 mL buret. Clearly label the location on the 0.00 mL line and the 50.00 mL line on the buret. Refer to appendix 5E for information about a buret. 2. Write the balanced chemical equation that will be used during this titration experiment. 3. Assume a student performed the acid-base titration experiment that you will be doing...
I need help answering the following chemistry lab questions Pre-Lab Questions 1. Define the following terms:...
I need help answering the following chemistry lab
questions
Pre-Lab Questions 1. Define the following terms: a) Acid b) Analyte c) Base d) End Point e) Neutralization reactiorn f) Standard solution 8) Titrant h) Titration A 25.00 ml. sample of NaOH was titrated with a 0.743 M HSO, Solution. The endpoint of the titration was observed after the addition of 5.00 ml. of HSO. Calculate the concentration of the NaOH 2. solution. Post-Lab Questions Calculate the volume of a 0.0321...
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1....
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1. What is a diprotic acid? (1 pt) 2. Give the balanced chemical reaction for the titration of oxalic acid with NaOH. (1 pts) OH HO- 3. When titrating 25.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the first equivalence point? How many mL of NaOH will you have added to reach...
Pre-Laboratory Assignment 1. Briefly describe the procedure you will follow to prepare your excess NaOH solution for safe disposal 2. Distinguish between the following pairs of terms as they pertain to this experiment. (a) monoprotic and diprotic acids (b) equivalence point and end point of a titration (c) half-equivalence point and equivalence point of a titration, 3. Following the Procedure of this experiment, a student titrated 0.653 g of an unknown weak, monoprotic acid with 0.100M NaOH and monitored the...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and ritration and point. Do these two points in a titration occur when the same volume of titrant has been added? Explain 3. A student standardized a NaOH solution using KHC.H.O.. Three different KHC&H.O. samples were dissolved in water and titrated with the same NaOH solution, each to a phenolphthalein end point. The pertinent reaction is: KHC H404 aq)...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and bitration end point. Do these two points in a titration occur when the same volume of titrant has been added? Explain. 3. A student standardized a NaOH solution using KHC.H.O.. Three different KHC.H.O. samples were dissolved in water and titrated with the same NaOH solution, each to a phenolphthalein end point. The pertinent reaction is: KHC3H404(aq) + NaOH(...
Pre-laboratory Assignment Name: Read the experiment and answer the following questions as directed by your instructor. 1. In this experiment, you will use potassium hydrogen phthalate (abbreviation KHP, formula HKCH.0) to standardize (to determine the concentration precisely of) the NaOH solution. What is the molar mass of KHP? 2. In Part 1, you will titrate a weighed mass of KHP (dissolved in water) with the unknown NaOH solution. What data must you collect in order to find [NaOH)? List the...
-e-laboratory Assignment Name: ead the experiment and answer the following questions as directed by your instructor A student is performing a titration. Diagrams of the buret at the beginning and the end of the titration are shown at right. To the correct number of significant figures, what is the initial volume, the final volume, and the volume of solution added during the titration? 16 2) Formic acid (HCOOH) is a weak acid with K. - 1.8 x 10-4. a) Write...
Name Desk Date, Laboratory Instructor Titration Curves of 26 Pre-lab Polyprotic Acids Questions tory, you should be able to answer the Before beginning this experiment in the labora following questions. 1. What is a polyprotic acid? If 10.7 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,CH,O,), how many milliliters of NaOH are required to completely neutralize this solution? 2. 3. How many millimoles of NaOH will react completely...
Titration Curves of Polyprotic Acids Pre-lab Questions Before beginning this experiment in the laboratory, you should be able to answer the following questions. 1. What is a polyprotic acid? 2. If 10.70 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,C H307), how many milliliters of NaOH are required to completely neutralize this solution? 3. How many millimoles of NaOH will react completely with 50 mL of 1.5 MH,C20,?...
Acid-Base Titration PRE-LABORATORY ASSIGNMENT This assignment must be completed in your notebook prior to attending pre-lab lecture. 1. Sketch a picture of a 50 mL buret. Clearly label the location on the 0.00 mL line and the 50.00 mL line on the buret. Refer to appendix 5E for information about a buret. 2. Write the balanced chemical equation that will be used during this titration experiment. 3. Assume a student performed the acid-base titration experiment that you will be doing...
I need help answering the following chemistry lab
questions
Pre-Lab Questions 1. Define the following terms: a) Acid b) Analyte c) Base d) End Point e) Neutralization reactiorn f) Standard solution 8) Titrant h) Titration A 25.00 ml. sample of NaOH was titrated with a 0.743 M HSO, Solution. The endpoint of the titration was observed after the addition of 5.00 ml. of HSO. Calculate the concentration of the NaOH 2. solution. Post-Lab Questions Calculate the volume of a 0.0321...
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1. What is a diprotic acid? (1 pt) 2. Give the balanced chemical reaction for the titration of oxalic acid with NaOH. (1 pts) OH HO- 3. When titrating 25.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the first equivalence point? How many mL of NaOH will you have added to reach...
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