2.74 g of canola oil were titrated with KOH. It required 13.92 mL of 0.0040 M KOHto reach the equivalence point. What is the acid number?Your Answer:Answerunits A student performed an acid-base titration of acetic acid with NaOH. Whichstatement(s) is/are true about the student's titration when it is at the equivalencepoint?The solution will contain mostly sodium acetate.The pH will be above 7 due to the presence of the weak conjugate base.The solution will contain mostly water and NaCl.The pH will be below 7 since acetic acid is a weak acid.The pH will be very close to 7 since the acid has been neutralized.

2.74 g of canola oil were titrated with 13.92 mL of 0.0040 M KOH to reach the equivalence point.We…

Answered: 2.74 g of canola oil were titrated with…

2.74 g of canola oil were titrated with KOH. It required 13.92 mL of 0.0040 M KOH to reach the equivalence point. What is the acid number? Your Answer: Answer units

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

2.74 g of canola oil were titrated with KOH. It required 13.92 mL of 0.0040 M KOH
to reach the equivalence point. What is the acid number?
Your Answer:
Answer
units

A student performed an acid-base titration of acetic acid with NaOH. Which
statement(s) is/are true about the student's titration when it is at the equivalence
point?
The solution will contain mostly sodium acetate.
The pH will be above 7 due to the presence of the weak conjugate base.
The solution will contain mostly water and NaCl.
The pH will be below 7 since acetic acid is a weak acid.
The pH will be very close to 7 since the acid has been neutralized.

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0 A titration is useful for determining the concentration of a given substance. True False
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Indicators can be used to help approximate the pH of a solution based on the indicator colour. Here is an example of how to word the pH approximation for bromothymol blue. Indicator Colour pH approximation Yellow 6.0 and below Green between 6.0 and 7.6 Blue 7.6 and above A Chemistry experiment is done where the pH of various solutions are tested, using indicators. The colours of indicators are recorded as shown below. Indicator Colour pH approximation orange IV orange Indicator Colour pH approximation thymol blue red Indicator Colour pH approximation alizarin yellow R red
If 8.00 mL of a different hydrochloric acid solution had a known concentration of 0.3456 M, how many mL of the 0.142M NaOH solution would be required to reach the equivalence point?(3 sig figs)
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QUESTION 4 Standardizing a solution of sodium hydroxide for our acid-base titration experiment means O a. to prepare a series of standard solutions and determine the average concentration. O b.to prepare the standard solution directly from a solid and not from a solution. O c. to compare the results of your titration with those of other laboratories, or other groups performing the same titration. O d. to determine, by titration , the concentration of the basic solution using a known quantity of a primary standard acid. Click Save and Submit to save and submit. Click Save All Answers to save all answers. F7 F8 F9 F10 F11 F12 Inse