Posted by emily on Friday, November 5, 2010 at 5:13pm.
Using the amount of chromate ion calculated to give the best end point gives such an intense yellow color that generally less than the optimum is used; therefore, generally, one must over titrate to get the end point color. The blank helps correct for that excess AgNO3 added to reach the end point. A second reason is that some people/students have trouble seeing the end point. In fact, through my years of teaching, I found that more students had more trouble with the Mohr method than any other procedure and all of it was because of the difficulty in seeing the end point. By using a blank, this problem corrects itself somewhat.
Related Questions
chemistry - Wich of the following is NOT true about the blank for the ...
Chemistry - Wich of the following is NOT true about the blank for the ...
Science - Which of the following is NOT true about the blank for the experiment...
chem - Wich of the following is NOT true about the blank for the experiment, &#...
Chemistry - Which of the following is NOT TRUE? A. The blank for this experiment...
Visual Basic (Computer) - In the following examples, identify the condition a ...
help - Introduction to quadratic equations? If you solve the equation by ...
Algebra 2 - Introduction to quadratic equations? If you solve the equation by ...
3rd grade - complete to show how you can find the sum by making a ten, hundred, ...
language arts - please help it says fill in the blanks to complete the ...
For Further Reading
