WELCOME TO THIS GREAT AND EXCITING EDUCATIONAL BLOG

Welcome to my TEAS Exam Prep blog. I hope it will help you prepare very well for the pre-nursing entrance exam, popularly known as the TEAS exam. This is one of the entrance exams required by some schools for those who want to pursue careers in the nursing field in the USA. I will attempt to break down the review materials into manageable parts so that you can systematically and efficiently prepare for the test with less stress. I will guide you to prepare for the entire content of the test. Hopefully, you will be able to pass after going through these series.


Best of luck!




To support this blog and my effort to make more quality free educational videos you can make a donation by clicking on the link below. Together, we can change somebody's life one person at a time around the globe.
Become a Patron!

Thursday, July 24, 2014

CRITICAL THINKING AND ANALYSIS - PART 2

The following table shows the volume of 0.1 mol/L NaOH added to 15 mL of 0.1 mol/L HCl in a titration experiment.


1) What is the volume of NaOH added at the equivalence point?
A. 30.0 ml
B. 15.0 ml
C. 0 ml
D. 17.5 ml

2) What is the pH of the acid at the beginning of the titration?
A. 12.5
B. 7.0
C. 1.0
D. 0

3) What is the volume of NaOH added when the pH was 12.3?
A. 20.0 ml
B. 25.0 ml
C. 22.5 ml
D. 17.5 ml

4) What was the volume of NaOH added when the acid was neutralized?
A. 30.0 ml
B. 15.0 ml
C. 0 ml
D. 17.5 ml


Answers: 1.  B   (Since NaOH is a strong base and HCl is a strong acid, the equivalence point occurs at pH of 7.)    2. C        3.  C       4.  B  (pH of 7 is the neutralization point)
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)