Why is it important to stop titrating when the faint pink color in the Erlenmeyer flask...
Why is it important to stop titrating when the faint pink color in the Erlenmeyer flask remains?
Homework Answers
Hi,
In titration we find the end point of reaction ( the reaction just completed at that point). It quantitative method used to measure the concentration of unknown solution by a standard solution ( solution of known solution ).So at end point only sudden pink change occurs at point the chemical reaction completed after this addition of titrant effect our calculation and errors occur. that is why important to stop titrating the faint pink color in the erlenmeyer flask remains.
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Why is it important to stop titrating when the faint pink color
in the Erlenmeyer flask...
The endpoint will be when the faint pink color of the indicator lasts for about 30...
The endpoint will be when the faint pink color of the indicator lasts for about 30 seconds. Why doesn’t it stay pink? (Give one of two possible explanations for this.)
need help with question 1,3,4 TITRATION OF THE ACID CONTENT IN VINEGAR PRE-LA QUESTIONS: Name Partners)...
need help with question 1,3,4
TITRATION OF THE ACID CONTENT IN VINEGAR PRE-LA QUESTIONS: Name Partners) Date Section Instructor 1. What characteristics determine whether a compound will make a good indicator? ffffffffflere prin 2. Write the correct balanced equations for the following neutralization reactions: a) phosphoric acid and sodium hydroxide b) sulfuric acid and lithium hydroxide b) hydrochloric acid and barium hydroxide 3. Why is it important to stop titrating when the faint pink color in the Erlenmeyer flask remains?...
Does adding boiled, deionized water to the titrating flask to wash the wall of the Erlenmeyer...
Does adding boiled, deionized water to the titrating flask to wash the wall of the Erlenmeyer flask and the buret tip affect the Ksp value of the Ca(OH)2? Explain.
Does adding boiled, deionized water to the titrating flask to wash the wall of the erlenmeyer flask and the buret tip increase, decrease, or have no effect on the Ksp value of the Ca(OH)2
Does adding boiled, deionized water to the titrating flask to wash the wall of the erlenmeyer flask and the buret tip increase, decrease, or have no effect on the Ksp value of the Ca(OH)2?
Why do you not want any water on the outside of the Erlenmeyer flask to drip...
Why do you not want any water on the outside of the Erlenmeyer flask to drip off into the calorimeter?
1. While titrating, a student added 50 mL of NaOH solution without ever seeing a color...
1. While titrating, a student added 50 mL of NaOH solution without ever seeing a color change. Suggest at least two pos sible reasons that this might occur. 2. A student completed two trials of titration with a very faint pink color, and one that was a very bright, intense pink color. What should the student do at that point? 3. A student asserts that the AG calculated from K is not AG n since the reaction did not take...
Lab Questions 1. Explain what happens to the moles of H" in the flask when you...
Lab Questions 1. Explain what happens to the moles of H" in the flask when you add boiled, deionized water to rinse the wall of the flask during the titration. Explain what happens to the moles of OH' needed from the buret to neutralize the acid after adding the water. What is the overall effect on the calculated acetic acid % of your sample? 2. Suppose that you do not add the water to rinse the wall of the flask,...
Why is it important to standardize the base in our experiment before titrating it with vitamin...
Why is it important to standardize the base in our experiment before titrating it with vitamin C?
Why is it important the Erlenmeyer flasks be dry upon addition of the saturated Ca(IO3)2 aliquot?
Why is it important the Erlenmeyer flasks be dry upon addition of the saturated Ca(IO3)2 aliquot?
can someone help me with these lab questioins on titration of diluted vinegar When titrating an...
can someone help me with these lab questioins on titration of
diluted vinegar
When titrating an acid with a base, phenolphthalein is often used to indicate the end of the titration. When placed in an acidic solution, phenolphthalein turns the solution a. b. green colourless pink. a milky white. C. d. To make a standard NaOH solution, about 13 mL of 3 M NaOH is mixed with about 300 mL of deionized water (H2OD) in a 500 ml beaker. Why...
need help with question 1,3,4
TITRATION OF THE ACID CONTENT IN VINEGAR PRE-LA QUESTIONS: Name Partners) Date Section Instructor 1. What characteristics determine whether a compound will make a good indicator? ffffffffflere prin 2. Write the correct balanced equations for the following neutralization reactions: a) phosphoric acid and sodium hydroxide b) sulfuric acid and lithium hydroxide b) hydrochloric acid and barium hydroxide 3. Why is it important to stop titrating when the faint pink color in the Erlenmeyer flask remains?...
1. While titrating, a student added 50 mL of NaOH solution without ever seeing a color change. Suggest at least two pos sible reasons that this might occur. 2. A student completed two trials of titration with a very faint pink color, and one that was a very bright, intense pink color. What should the student do at that point? 3. A student asserts that the AG calculated from K is not AG n since the reaction did not take...
Lab Questions 1. Explain what happens to the moles of H" in the flask when you add boiled, deionized water to rinse the wall of the flask during the titration. Explain what happens to the moles of OH' needed from the buret to neutralize the acid after adding the water. What is the overall effect on the calculated acetic acid % of your sample? 2. Suppose that you do not add the water to rinse the wall of the flask,...
can someone help me with these lab questioins on titration of
diluted vinegar
When titrating an acid with a base, phenolphthalein is often used to indicate the end of the titration. When placed in an acidic solution, phenolphthalein turns the solution a. b. green colourless pink. a milky white. C. d. To make a standard NaOH solution, about 13 mL of 3 M NaOH is mixed with about 300 mL of deionized water (H2OD) in a 500 ml beaker. Why...
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