Homework Answers
Solution:
1) Titration to determine sample size:
A titration is performed to determine sample size is important because it provide high accuracy and minimizes error.
It provide the optimal concentration of titrants to easily observes end point and mid point detection.
2) Midpoint :
Midpoint of a titration suggest the pka of the acid. Thus, pH corresponding to mid point of a titration curve is equal to the pka of the weak acid.
3) A burret can read upto two decimal places.
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PRELABORATORY ASSIGNMENT Due at the beginning of the lab period (Week 1). 1. What are the...
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...
PRELABORATORY ASSIGNMENT Due at the beginning of the lab period. 1. Give the Lewis structures for...
PRELABORATORY ASSIGNMENT Due at the beginning of the lab period. 1. Give the Lewis structures for the following compounds, a d. Show charges of structures when present. a. NH, b. XeF, c. TeF d. IC1,24 2. The molecule tetrafluoroethene, CF. includes a pi (r) bond between the carbons. Answer parts a and b. a. Draw the Lewis structure for tetrafluoroethene. b. On the two carbon atoms below, make a sketch of only the two atomic orbitals that form the pi...
please help with my pre lab additional information Pre-Lab Questions: 1. What is the definition of...
please help with my pre lab
additional information
Pre-Lab Questions: 1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCI stock solution. In your response to this question, be very specific about the quantities of stock solution and...
Name: Date CHEM 3401 Prelaboratory Assignment, Elimination Reactions of Alkyl Halides Due at the beginning of...
Name: Date CHEM 3401 Prelaboratory Assignment, Elimination Reactions of Alkyl Halides Due at the beginning of the lab period Reading Assignment from Zubrick, 9 ed.: Drying agents, Chapter 10, Extraction and Washing. Chapter 15: Elimination Reactions of Alkyl Halides Experiment, GSU Laboratory Manual 1. The concentrated hydrochloric acid you will use in the first day of the laboratory exercise is not 100 % hydrochloric acid. What else is present in the concentrated hydrochloric acid solution, and what are the relative...
The table filled is the lab run. Please can you use the three informations provided above...
The table filled is the lab run.
Please can you use the three informations provided above to answer
the empty table
Take Density of vinegar = 1.005g/mol
concentration of NaOH = 0.1205M
Experiment #7. Titration of Vinegar Goals 1. To determine the mass percent of acetic acid in a solution via titration. 2. To master the technique of titration. Introduction Vinegar is a common household item that is found in a number of products from salad dressing to cleaners. Vinegar...
Prelaboratory assignment Exp. 7 Determining K Name: Date: Lab Section: 5. Data in the following table...
Prelaboratory assignment Exp. 7 Determining K Name: Date: Lab Section: 5. Data in the following table were obtained for the titration of a 0.297-8 sample of a solid, onoprotic weak acid with a 0.150 M KOH solution. Plot pH (ordinate) versus VKOH (abscissa) Vkohadded (mL) pl 0.00 2.00 4.00 7.00 10.00 12.00 14.00 16.00 17.00 18.00 20.00 25.00 1.96 2.22 2.46 2.77 3.06 3.29 3.60 4.26 11.08 11.67 12.05 12.40 a. What volume of the KOH solution is required to...
HELP! Part B: Determination of acid ionization constant (K.) and molar mass of an u Concentration...
HELP!
Part B: Determination of acid ionization constant (K.) and molar mass of an u Concentration of NaOH (mol/L) from bottle: 0.1053 Mass concentration of unknown acid (g/L) from bottle: 3.120 pH of unknown acid solution: 228 from pH meter. 1) Titration of unknown acid using indicator only Trial 2 Trial 1 1.593 30.851 090909 ml Mass of empty beaker Mass of beaker + unknown acid solution Mass of unknown acid solution Volume of unknown acid solution Initial volume of...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2....
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...
2 Prelaboratory Assignment (Due at the beginning of lab) 1. Predict the major product(s) for the...
2 Prelaboratory Assignment (Due at the beginning of lab) 1. Predict the major product(s) for the following reactions wedge and/or dash at the chirality center. No reaction mechani Be sure to indicate s wedge andlor dash at then appropriate. Show stereochemistry with two lines in the plane and a H20 + HO- (in excess; used as solvent) H20 (in excess: used as solvent) くへ人。ヘ HO- но- +
titration lab report additional images of lab report QUESTIONS 1. A student masse 0878 of an...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
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...
PRELABORATORY ASSIGNMENT Due at the beginning of the lab period. 1. Give the Lewis structures for the following compounds, a d. Show charges of structures when present. a. NH, b. XeF, c. TeF d. IC1,24 2. The molecule tetrafluoroethene, CF. includes a pi (r) bond between the carbons. Answer parts a and b. a. Draw the Lewis structure for tetrafluoroethene. b. On the two carbon atoms below, make a sketch of only the two atomic orbitals that form the pi...
please help with my pre lab
additional information
Pre-Lab Questions: 1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCI stock solution. In your response to this question, be very specific about the quantities of stock solution and...
Name: Date CHEM 3401 Prelaboratory Assignment, Elimination Reactions of Alkyl Halides Due at the beginning of the lab period Reading Assignment from Zubrick, 9 ed.: Drying agents, Chapter 10, Extraction and Washing. Chapter 15: Elimination Reactions of Alkyl Halides Experiment, GSU Laboratory Manual 1. The concentrated hydrochloric acid you will use in the first day of the laboratory exercise is not 100 % hydrochloric acid. What else is present in the concentrated hydrochloric acid solution, and what are the relative...
The table filled is the lab run.
Please can you use the three informations provided above to answer
the empty table
Take Density of vinegar = 1.005g/mol
concentration of NaOH = 0.1205M
Experiment #7. Titration of Vinegar Goals 1. To determine the mass percent of acetic acid in a solution via titration. 2. To master the technique of titration. Introduction Vinegar is a common household item that is found in a number of products from salad dressing to cleaners. Vinegar...
Prelaboratory assignment Exp. 7 Determining K Name: Date: Lab Section: 5. Data in the following table were obtained for the titration of a 0.297-8 sample of a solid, onoprotic weak acid with a 0.150 M KOH solution. Plot pH (ordinate) versus VKOH (abscissa) Vkohadded (mL) pl 0.00 2.00 4.00 7.00 10.00 12.00 14.00 16.00 17.00 18.00 20.00 25.00 1.96 2.22 2.46 2.77 3.06 3.29 3.60 4.26 11.08 11.67 12.05 12.40 a. What volume of the KOH solution is required to...
HELP!
Part B: Determination of acid ionization constant (K.) and molar mass of an u Concentration of NaOH (mol/L) from bottle: 0.1053 Mass concentration of unknown acid (g/L) from bottle: 3.120 pH of unknown acid solution: 228 from pH meter. 1) Titration of unknown acid using indicator only Trial 2 Trial 1 1.593 30.851 090909 ml Mass of empty beaker Mass of beaker + unknown acid solution Mass of unknown acid solution Volume of unknown acid solution Initial volume of...
1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCl stock solution. In your response to this question, be very specific about the quantities of stock solution and deionized water to be used in the dilution and the...
2 Prelaboratory Assignment (Due at the beginning of lab) 1. Predict the major product(s) for the following reactions wedge and/or dash at the chirality center. No reaction mechani Be sure to indicate s wedge andlor dash at then appropriate. Show stereochemistry with two lines in the plane and a H20 + HO- (in excess; used as solvent) H20 (in excess: used as solvent) くへ人。ヘ HO- но- +
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
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