Use the concentration you found in that lab as the starting concentration of C2H3O2-. Calculate the...
Use the concentration you found in that lab as the starting concentration of C2H3O2-. Calculate the hydroxide concentration and the pH at the equivalence point.
HC2H3O2 Molarity: 0.19M
Homework Answers
Add Answer to:
Use the concentration you found in that lab as the starting
concentration of C2H3O2-. Calculate the...
Acid Dissociation lab. Solution 1: 0.02M, pH3.20, solution 2: 0.2M pH3.67 Construct an ICE table and...
Acid Dissociation lab. Solution 1: 0.02M, pH3.20, solution 2: 0.2M pH3.67 Construct an ICE table and use the initial molarity of [HC2H3O2], the equilibrium concentration for [H3O+]eq and the equation; HC2H3O2-(aq)+H2O(l)=H3O+(aq)+C2H3O2-(aq) to determine HC2H3O2-]eq and [HC2H3O2]eq Can you please break it down step by step to I can use these examples to do other ICE problems and get the system down, thank you!
A bottle of aqueous hydrochloric acid of concentration is found in the stockroom. method. You titrate...
A bottle of aqueous hydrochloric acid of concentration is found in the stockroom. method. You titrate Your job is to determine the unknown using the titration found 25.00 molarity the acid potassium acid of aqueous acid unlabeled equivalence with 18.75 0.9250 M hydrochloric (12 pt) point. the molarity of the in the
Please help with the prelab questions! thank you!!!! Especially 2 and 3! Pre-Lab Questions 1. Calculate...
Please help with the prelab questions! thank you!!!!
Especially 2 and 3!
Pre-Lab Questions 1. Calculate the theoretical equivalence point (the volume!) in terms of ml NaOH adde each of the titrations. Assume the concentration of acid is 0.81 M and the concentration of base is 0.51 M. 2. Which equation can be used to find the pH of a buffer? Calculate the pH of a buffer containing 0.20 M CH3COOH and 0.20 M CH3COONa. What is the pH after...
at .2M and 10 mL pH= 2.78 at .02M and 1mL pH=3.32 a) Determine the [H3O+]eq...
at .2M and 10 mL pH= 2.78 at .02M and 1mL pH=3.32 a) Determine the [H3O+]eq from the pH values for each solution. b) Construct ICE tables and use the initial molarity of [HC2H3O2] for each diluted solution, the equilibrium concentration for [H3O+]eq and the equation below to determine [C2H3O2–]eq and [HC2H3O2]eq. HC2H3O2(aq) + H2O (l)--> H3O+(aq) + C2H3O2–(aq) c. Write the Ka expression for the acid dissociation reaction and substitute the calculated equilibrium concentrations in to determine the Ka...
Post-lab Questions 1. Ca n you titrate a solution of unknown concentration with another solution of...
Post-lab Questions 1. Ca n you titrate a solution of unknown concentration with another solution of unknown concentrat and still get a meaningful answer? Explain your answer in a few sentences 2. Explain the difference between an end point and equivalence point in a titration. 3. What is the pKa of phenolphthalein? Why is it acceptable to use an indicator whose pKa is not exactly the pH at the equivalence point? 4. What was the concentration of the NaOH solution...
If you measure an equilibrium concentration of 0.25 M acetic acid, and 0.002 M acetate (C2H3O2-)...
If you measure an equilibrium concentration of 0.25 M acetic acid, and 0.002 M acetate (C2H3O2-) what is the pH of the solution?
Question 6 (1 point) In your pre-lab, you were asked to determine the concentration for a...
Question 6 (1 point) In your pre-lab, you were asked to determine the concentration for a 25.00 mL sample of acetic acid, CH3COOH (K= 1.8 x 10-5) of unknown concentration. Suppose you now repeat that same titration, using another 25.00 mL sample of that same unknown acetic acid and the same concentration of NaOH as a titrant. However, before you start titrating, you add an additional 100 mL of water to the flask containing our sample of acid. Everything else...
Question 6 (1 point) In your pre-lab, you were asked to determine the concentration for a...
Question 6 (1 point) In your pre-lab, you were asked to determine the concentration for a 25.00 mL sample of acetic acid, CH3COOH (Kg = 1.8 x 105) of unknown concentration. Suppose you now repeat that same titration, using another 25.00 mL sample of that same unknown acetic acid and the same concentration of NaOH as a titrant. However, before you start titrating, you add an additional 100 mL of water to the flask containing our sample of acid. Everything...
1. You made a 0.3% KCl solution in Professor Fiorni’s lab but need to determine the...
1. You made a 0.3% KCl solution in Professor Fiorni’s lab but need to determine the Molarity of it for a paper. (MW of KCl is 74.55 g/mol) 2. You are working as a research technician for Pfizer and in your lab, one solution of hydrochloric acid has a pH of 3.2, while another solution of sodium hydroxide has a pH of 9.7. Calculate the concentration of hydrogen ions in each solution.
1. Use the data given to calculate the following parts: a. Using your data for the...
1. Use the data given to calculate the following parts:
a. Using your data for the value for VEP1, calculate the
molarity of H3PO4 at the 1st equivalence point, EP1. Show work
clearly, with units and correct significant figures.
b. Using your data for the value for VEP2, calculate the
molarity of H3PO4 at the 2nd equivalence point, EP2. Show work
clearly, with units and correct significant figures.
c. Calculate the percent error between these two molarity
values, % error...
A bottle of aqueous hydrochloric acid of concentration is found in the stockroom. method. You titrate Your job is to determine the unknown using the titration found 25.00 molarity the acid potassium acid of aqueous acid unlabeled equivalence with 18.75 0.9250 M hydrochloric (12 pt) point. the molarity of the in the
Please help with the prelab questions! thank you!!!!
Especially 2 and 3!
Pre-Lab Questions 1. Calculate the theoretical equivalence point (the volume!) in terms of ml NaOH adde each of the titrations. Assume the concentration of acid is 0.81 M and the concentration of base is 0.51 M. 2. Which equation can be used to find the pH of a buffer? Calculate the pH of a buffer containing 0.20 M CH3COOH and 0.20 M CH3COONa. What is the pH after...
Post-lab Questions 1. Ca n you titrate a solution of unknown concentration with another solution of unknown concentrat and still get a meaningful answer? Explain your answer in a few sentences 2. Explain the difference between an end point and equivalence point in a titration. 3. What is the pKa of phenolphthalein? Why is it acceptable to use an indicator whose pKa is not exactly the pH at the equivalence point? 4. What was the concentration of the NaOH solution...
Question 6 (1 point) In your pre-lab, you were asked to determine the concentration for a 25.00 mL sample of acetic acid, CH3COOH (K= 1.8 x 10-5) of unknown concentration. Suppose you now repeat that same titration, using another 25.00 mL sample of that same unknown acetic acid and the same concentration of NaOH as a titrant. However, before you start titrating, you add an additional 100 mL of water to the flask containing our sample of acid. Everything else...
Question 6 (1 point) In your pre-lab, you were asked to determine the concentration for a 25.00 mL sample of acetic acid, CH3COOH (Kg = 1.8 x 105) of unknown concentration. Suppose you now repeat that same titration, using another 25.00 mL sample of that same unknown acetic acid and the same concentration of NaOH as a titrant. However, before you start titrating, you add an additional 100 mL of water to the flask containing our sample of acid. Everything...
1. Use the data given to calculate the following parts:
a. Using your data for the value for VEP1, calculate the
molarity of H3PO4 at the 1st equivalence point, EP1. Show work
clearly, with units and correct significant figures.
b. Using your data for the value for VEP2, calculate the
molarity of H3PO4 at the 2nd equivalence point, EP2. Show work
clearly, with units and correct significant figures.
c. Calculate the percent error between these two molarity
values, % error...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago