Question

In: Chemistry

Suppose you are titrating vinegar, which is an acetic acid solution of unknown strength, with a...

Suppose you are titrating vinegar, which is an acetic acid solution of unknown strength, with a sodium hydroxide solution according to the equation

H C 2 H 3 O 2 + N a O H ⟶ H 2 O + N a C 2 H 3 O 2 H C 2 H 3 O 2 + N a O H ⟶ H 2 O + N a C 2 H 3 O 2

If you require 33.38 mL of 0.1936 M N a O H N a O H solution to titrate 10.0 mL of H C 2 H 3 O 2 H C 2 H 3 O 2 solution,

what is the molar concentration of acetic acid in the vinegar?

Solutions

Expert Solution

CH3COOH + NaOH CH3COONa + H2O

one mole of acetic acid is neutralized by NaOH

Molarity ( NaOH ) X Volume ( NaOH ) =Molarity ( Acetic acid ) X Volume ( acetic acid )

0.1936 M X 33.38 mL = Molarity ( Acetic acid ) X 10 mL

Molarity ( Acetic acid ) = 0.646 M

plz like


Related Solutions

Suppose you are titrating an acid of unknown concentration with a standardized base. At the beginning...
Suppose you are titrating an acid of unknown concentration with a standardized base. At the beginning of the titration, you read the base titrant volume as 1.99 ml. After running the titration and reaching the endpoint, you read the base titrant volume as 20,54 ml.   What volume, in ml, of base was required for the titration?
An analytical chemist is titrating 178.3mL of a 0.3400M solution of acetic acid HCH3CO2 with a...
An analytical chemist is titrating 178.3mL of a 0.3400M solution of acetic acid HCH3CO2 with a 0.2300M solution of NaOH . The pKa of acetic acid is 4.70 . Calculate the pH of the acid solution after the chemist has added 46.70mL of the NaOH solution to it
A.) Vinegar is a solution of acetic acid, HCH3COO, in water. Because only the first hydrogen...
A.) Vinegar is a solution of acetic acid, HCH3COO, in water. Because only the first hydrogen atom ionizes, acetic acid is a monoprotic acid. A 25.00 mL sample of vinegar was analyzed using 0.002450 M NaOH solution. The analysis required 8.93 mL of the sodium hydroxide solution. Write a balanced equation for the reaction of acetic acid with sodium hydroxide. How many mg of acid are present in the sample of vinegar? What is the mass percent acetic acid in...
You were given 25.00mL of an acetic acid solution of unknown concentration. You find that it...
You were given 25.00mL of an acetic acid solution of unknown concentration. You find that it requires 37.15mL of a 0.1047M NaOH solution to exactly neutralize this sample (phenolphthalein was used as an indicator). Show detailed work.
Suppose you are titrating 50.00 mL of 0.1752 M acetic acid (CH3COOH; Ka = 1.76 ×...
Suppose you are titrating 50.00 mL of 0.1752 M acetic acid (CH3COOH; Ka = 1.76 × 10^-5) with 0.1998 M sodium hydroxide (NaOH). Calculate the pH of a titree solution when: (a) 15.25 mL of NaOH is added. (3 pts) (b) the equivalent volume (equivalence point) of NaOH is added. (4 pts) (c) a half of the equivalent volume is added (3 pts) (d) 46.00 mL of NaOH is added. (3 pts)
14) you are titrating 10.0mL of a solution of 0.25M acetic acid (Ka=1.8 x 10 ^-5)....
14) you are titrating 10.0mL of a solution of 0.25M acetic acid (Ka=1.8 x 10 ^-5). you are using a solution of 0.10M KOH to complete the titration curve. create the graph that would result by adding 1.0mL of the base to the acid and determining the pH and repeating until you have passed the equivalence point. Start the graph with 0 mL of the base solution added.  
Vinegar is an aqueous solution of acetic acid (CH3COOH) that can be made from any source...
Vinegar is an aqueous solution of acetic acid (CH3COOH) that can be made from any source containing starch or sugar. Apple cider vinegar is made from apple juice that is fermented to produce alcohol which then reacts with oxygen in the air in the presence of certain bacteria to produce vinegar. Commercial vinegar must contain no less than 4 grams of acetic acid per 100 mL of vinegar. Suppose the titration of a 25.00 mL sample of vinegar requires 11.20...
A very expensive method of making vinegar (pH=3.00) is to prepare a solution of acetic acid...
A very expensive method of making vinegar (pH=3.00) is to prepare a solution of acetic acid in the laboratory. At 25 degrees C, pure acetic acid is a liquid with a density of 1.049 g ml^-1. The pKa of acetic acid is 4.76. Calculate the volume of acetic acid that must be added to water to make 500.0 mL of vinegar. Show work.
The distinctive odor of vinegar is due to acetic acid, HC2H3O2. Acetic acid reacts with sodium...
The distinctive odor of vinegar is due to acetic acid, HC2H3O2. Acetic acid reacts with sodium hydroxide in the following fashion: HC2H3O2(aq) + NaOH(aq)-> H2O(l) + NaC2H3O2(aq). If 2.52 mL of vinegar requires 34.9 mL of 0.1031 M (molarity) NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.00 qt sample of this vinegar? (1 L = 1.0567 qt)
The experiment is Determination of Acetic Acid in Vinegar. Please answer as many questions as you...
The experiment is Determination of Acetic Acid in Vinegar. Please answer as many questions as you can. What are primary and secondary standards? Give examples. What is KHP and why was it used in this lab? How is acetic acid formed in vinegar solution? Why are pH indicators strongly colored even in solid state? Why/how do pH indicators change colors in acid-base solutions? Molar mass of acetic acid is often calculated or experimentally measured as 120 g/mol. Why? Suggest another...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT