Red River Valley Local Section

     U S Na Ti O N Al    C He m I S tr Y   Olympiad

U S N C O is a multi-tiered competition for High School students of C He m I S tr Y  promoting connection of the Local Section to students and teachers in North Dakota and northwestern Minnesota. 

The following links provide more specific details of the Local Section program.

  • Announcement of the Local Section U S N C O.
  • Student Registration Submission?  Completed form must be received by the Coordinator before 5 March, 2010. so Local testing sites can be defined and to assure that examination materials can be circulated..  Use button to < Left.
  • Local Section Competition.
  • Why Participate.
  • Local Section Examination.
  • National Examination.
  • Local Section Exam Results.
  • Local Section National Exam Results.
  • National Exam Results.
  • Outstanding Performance.

Click here for an overview of U S N C O.

   The 2012 International Chemistry Olympiad will be held in the United States for only the second time in its 44 year history.  The competition, which will be hosted by the American Chemical Society, takes place on 21-30 July, 2012, at the University of Maryland, College Park.

** Why should I participate ? -.- 

   Beyond the reward of participating in the Local Section competition to qualify for the 43rd International Chemistry Olympiad in Ankara, Turkey, 9-18 July, 2011, the Red River Valley Local Section of the American Chemical Society will present the following recognition.

Participation:

Printed certificate suitable for framing.
Periodic table wallet card.


Nominees to take the National Examination:

Certificate of performance suitable for framing.
Element pin selected from a grab bag.
Invitation to attend our May meeting/dinner as guests of the Local Section.
     (Parents also invited to attend as guests)


Top two Outstanding Performances on the National Examination:

Certificate of Achievement suitable for framing.
$100 U S Savings bond.
Engraved ACS plaque commemorating achievement.
ACS pen or other suitable item.
Invitation to attend our Awards meeting/dinner as guests of the Local Section.
     (Parents also invited to attend as guests)


Teacher of Top two Outstanding Performances on the National Examination:

Invitation (with partner) to Awards meeting/dinner as guests of the Local Section.
ACS pen or other suitable item.
Element pin from grab bag.
One year subscription to J Chem Ed for teacher.
Two year subscription to Chem Matters for School.


Committee Members:

Certificate of participation suitable for framing.
Element pin from grab bag.

    These are the ELEMENTS contributing to the success of our USNCO program.

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Local Section Competitions

  The Red River Valley Local Section will again use the results of examinations from the ACS DivCHED Examinations Institute to select those students to participate in the USNCO National Examination. The full Local Section examination consists of 60 multiple-choice questions representing a fairly wide range of difficulty. Students will be permitted to use non-programmable calculators {but not cell phone calculators for obvious reasons}. A periodic table and other useful information are provided on page two of the exam booklet for student reference. Suggested time: 110 minutes.

Examination Sites are provided at the Institutions of Higher Education located throughout the "Local Section". Registered students residing proximate to a testing site should contact the Local Site Coordinator. Examinations will be administered at times selected to accommodate scheduling conflicts characteristic of a given local area. School based Activities such as an "All State Music Contest" and various "Track and Field events" seem to conflict alternate weekends in the later part of March. Saturday, 26 March, 2011 is the suggested date, but local alternate arrangements can be negotiated.

BEMIDJI STATE UNIVERSITY : Dragoljub D BILANOVIC
Registered: 0.
Time: . 
Place:  .
 
BISMARCK STATE COLLEGE : Brent REEMS
Registered: 0.

Time: .
Place: .

UNIVERSITY of MINNESOTA CROOKSTON: Cleon MELSA
Registered: 0.
Time: .
Place: .

DICKINSON STATE UNIVERSITY : Paula J MARTIN
Registered: 0.
Time: 8:00AM. .
Place: Murphy Hall.

JAMESTOWN COLLEGE : Carl STEFFAN
Registered: 0.
Time: .
Place: .

MAYVILLE STATE UNIVERSITY : Thomas GONNELLA
Registered: 0.
Time: . .
Place: .

MOORHEAD STATE UNIVERSITY : Asoka MARASINGHE
Registered:  0.

 
Time: 10:00AM . .
Place: Hagen Hall Room 210 .
11th Street South and 6th Avenue South


MINOT STATE UNIVERSITY : Ryan WINBURN
Registered: 0.
 
Time: 10:00AM . .
Place: Cyril Moore Hall (the Science Building) Room 231.
Dr. Mikhail Bobylev will be co-coordinator.

NORTH DAKOTA STATE COLLEGE of SCIENCE : William SHAY
Registered: 0.


Time: 10:00 am . .
Place:  Haverty Hall  Room  226.
Unlocked door will be identified.

UNIVERSITY of NORTH DAKOTA :
Registered: 0.


Time: 8:30 am. .
Place: University of North Dakota Memorial Union  Agassiz Room, Second Floor.
{ As you go in the front entrance, proceed up the stairs to the 2nd floor and turn right }.

VALLEY CITY STATE UNIVERSITY : Donald HOFF
Registered: 0.
Time: . .
Place: .
 

                     National U S N C O Results   2010.

Dear Chemistry Olympiad Coordinator,

The scoring of the 2010 U.S. National Chemistry Olympiad (USNCO) national examination has been completed and the winners named. Although each of the students you nominated performed creditably, they were not among the 20 chosen to attend the study camp at the U.S. Air Force Academy in Colorado.

Enclosed is a report of the students’ performance on part one, the multiple-choice section. This report lists students’ performances that were outstanding, average or below average for the topics covered by the exam. In an attempt to comply with the Family Rights and Privacy Act, we are not releasing the total score of part one of the exam. Remember, students are selected for the study camp based on all three parts of the exam. Certificates for the Top 150 students that ranked High Honors (top 50) and Honors (if applicable) will be mailed by regular mail.

For your information, the 2010 National Exam is available on the Internet at www.acs.org/Olympiad

We thank you for your hard work and enthusiasm in coordinating the Olympiad program in your local section and hope you and your local section will participate again in 2011.

     WILL NEED SOME SERIOUS REFORMATTING TO MAKE THE RESULTS READABLE.... ?

STUDENT #
 52101
 02 03 04 05 06 07 08 09
 Bonding
Molec/Struc.
Above Avg
 Below Avg Above  Avg Below Avg Above Avg
    
 Equilibrium Above Avg Below Avg Above Avg Below Avg Below Avg
    
 Kinetics Above Avg Below Avg Below Avg Below Avg Below Avg
    
 Descriptive
Chem/Lab.
 Below Avg Below Avg Below Avg Below Avg Below Avg
    
 Stoich./
Solutions
 Above Avg Below AvgOutstandg Below Avg Below Avg
    
 Organic/
Biochem.
 Below Avg
 Below Avg Below Avg Below Avg Above Avg
    
 Atomic Str./
Periodicity
 Below Avg Below Avg Below Avg Below Avg Above Avg
    
 Oxidation
Reduction
 Below Avg Below Avg Above Avg Below Avg Below Avg
    
 States of
Matter
 Above Avg Below Avg Below Avg Below Avg Below Avg
    
 Thermo-
dynamics
 Above Avg
 Below Avg Below Avg Below Avg Below Avg
    


2010 USNCO ANALYSIS PART I by Category of Questions.

Correct Answers Average - 930 Students

 Category Questions Below Average AverageAbove Average Outstanding % Average 
 Bonding &
Molecular Struc.
 49-54 1 - 2 2.9 3 - 5 6 49%
 Equilibrium 31-36 1 -3 3.0 4 - 5 6 50%
 Kinetics 25-30 1 - 3 3.7 4 - 5 6 62%
 Descriptive Chemistry
Laboratory
 1 - 6 1 - 3 3.6 4 - 5 6 60%
 Stoichiometry
Solutions
 7 - 12 1 - 4 4.3 5 6 72%
 Organic/
Biochemistry
 55-60 1 - 2 2.3 3 - 5 6 39%
 Atomic Structure/
Periodicity
 43-48 1 - 3 3.7 4 - 5 6 65%
 Oxidation
Reduction
 37-42 1 -3 3.4 4 - 5 6 56%
 States
of Matter
 13-18 1 -2 2.5 3 - 5 6 42%
 Thermo
dynamics
 19-24 1 - 3 3.3 4 - 5 6 55%


Cecillia Hernandez

Staff Liaison
Assistant Director, Education Division
American Chemical Society
Endowed Programs

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Local Section National U S N C O Results  -  2010

    The scoring of the 2010 U.S. National Chemistry Olympiad (USNCO) national examination by the Local Section Coordinator has been completed.  Results of the multiple response section of the examination suggest greater difficulty as compared to the Local Section examination of March.  Each of the three sections of the National examination were assessed on the basis of 60 points possible {distributed over the multiple sections of the eight free response questions and four major components of the two laboratory exercises.}  Serious subjectivity was introduced in Part II where partial credit was assigned when a wrong numerical value calculated early on meant that no correct response could be made in a subsequent step even though the data processing procedure for the later step was flawless.  The oxidation states of vanadium for question (3) derive from figure 21.27 of Essentials of General Chemistry, second edition by Ebbing, Gammon and Ragsdale.  Ronald Ragsdale, University of Utah is a member of the Olympiad Examinations Task Force.

    For Part III, in general the procedure was to combine substances with reagents and observe results.  Specifics were generally lacking.  For observations it was difficult to find definitive content needed to respond to the problem at hand.  The vial of pink solid was Co (H2O)6 SO4.H2O;  yellow-orange solid was FeCl3.6 H20;  blue-green solid was CuCl2.2 H2O;  white solid was K2O4C2.  I missed seeing that a deep royal blue color was observed when the copper chloride sample was combined with ammonia.  I realize that the chemistry of the transition metal ions usually appears in one of those later chapters of the text book that are often omitted because of lace of time.  {Chapter 21 in the Essentials of General Chemistry.  describes in great detail the structure and isomerism of coordination compounds.}  Thus I understand the lack of reaction equations describing product formation

Cu (H20)4 ++   + 4 NH3   -->   Cu (NH3)4 + 4 H2O

and the description of structures.  Please take the time to review the sections on transition metal ion chemistry in your Chemistry text book.

    The chloride ion can be quantitatively determined by precipitation of AgCl, collection and weighing the dry collected precipitate.  In the procedure where this process was attempted, I could find no information detailing how water was separated from the precipitate as it was removed.  The second laboratory exercise was based upon a classic gravimetric titration.  The observations were to include mass of containment.

                                                mass of added salt water  [determined by difference]

                                                mass of AgNO3 solution added to precipitate AgCl

The key concern is determination when enough Ag+ ion is added to  just precipitate the Cl- ion present in the aliquot of salty water.  "In the MOHR method for the determination of chloride ion, the chloride ion is precipitated by titration with standard silver nitrate solution in the presence of a small concentration of chromate ion, and the ending point of the titration is signaled by the first detectable and permanent appearance of a precipitate of brick-red-colored silver chromate."

       Ag+  +   Cl-   =    AgCl(s)                     2 Ag+   CrO4=    =    Ag2CrO4(s)

      Ksp  =  [ Ag+ ] [ Cl- ]                              Ksp    =     [ Ag+ ]2 [CrO4 ]

   I hope that my comments above can provide some insight into the meaning of the scores recorded for the three parts of the National USNCO Examination.

 
 L S
 National
 National
 National
 National
 I D
Mult
 Mult respnd Free fmt
 Lab Totals
 52101 49 31 48 16 95
 52102 31 14 22 13 49
 52103 36 26 40 22 88
 52104 40 17 48 24 89
 52105 41 25 36 41 102

 

          U S National Chemistry Olympiad Exam.

   The Red River Valley Local Section of the American Chemical Society nominates the following students to take the National Examination on 16 April, 2011.

Exam sites determined based upon the locations of the nominees.

BEMIDJI STATE UNIVERSITY : Dragoljub D BILANOVIC
Nominated: 0.
Place: .

BISMARCK STATE COLLEGE : Brent REEMS
Nominated: 0.

 
Place:  Jack Science Center Room 314.

UNIVERSITY of MINNESOTA CROOKSTON: Cleon MELSA
Nominated: 0.
Place: .

DICKINSON STATE UNIVERSITY : Paula J MARTIN
Nominated: 0.
Place: Murphy Hall.

JAMESTOWN COLLEGE : Carl STEFFAN
Nominated: 0.
Place: .

MAYVILLE STATE UNIVERSITY : Thomas GONNELLA
Nominated: 0.
Place: .

MOORHEAD STATE UNIVERSITY : Asoka MARASINGHE
Nominated: 0.

Place: Science Laboratory building Room 118 .
(next to and east of Hagen Hall, on 6th Avenue)


MINOT STATE UNIVERSITY : Ryan WINBURN
Nominated: 0.
Place: Cyril Moore Hall (the Science Building) Room 231.


NORTH DAKOTA STATE COLLEGE of SCIENCE : William SHAY
Nominated: 0.
Place: .

UNIVERSITY of NORTH DAKOTA :
Nominated: .

Place: Abbott Hall, Rooms 201 & 204.

VALLEY CITY STATE UNIVERSITY : Donald HOFF
Nominated: 0.
Place: .


The National USNCO Examination is a three part examination scheduled on

Saturday, 16 April, 2011, beginning at 9:00 am.

          9:00 - 10:30 Part I. Multiple Response. 60 questions / 90 minutes.

      20 minute “walk about” break.

10:50 - 12:35 Part II. Free Response. 8 questions / 105 minutes.

      Lunch for participants and Site Coordinator paid for by the RRVLS.

13:35 - 15:05 Part III. Laboratory Practical. 2 exercises / 90 minutes.

   Immediately after completion, Examination materials will be expressed to the Local Section Coordinator for local scoring, packaging and shipping to the National Exam Center    { to arrive no later than 20 April }.

   Details describing the National Examination and the Rules pertaining thereto can be found by clicking on this  U S N C O link .

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** Local Section Examination Results.

.
Scores as determined by Coordinator 2010
.Out of 60 total possible.

ID Code
 Score ID Code Score
 1002 49 1004 26
 1013 44 1026 24
 1006 41 1011 24
 1008 40 1030 23
 1015 36 1022 23
 1019 31 1009 22
 1012 30 1005 21
 1007 30 1003 21
 1010 27 1020 20
 1016 27 1027 19
 1023 27 1014 19
 1018 27 1028 17
 1021 26 1029 14
 1017 26 1031 14
 1024 26 1025 10

 

    30 respondents from five High School Chemistry programs  Avg score = 26.13, stds = 8.9 We hope the following information may be of use in assessing competence in subject areas deemed important by the USNCO LS Exam committee of the ACS - Exam Institute. Lower numbers suggest lower [coverage / understanding] of the topic associated with a given question.  If your exam booklet has not been returned, students should request from your Local Site Coordinator.  With so few respondents, a response analysis of each question does not seem justified at this time.
 
   The limited number of participants in our Local Section USNCO competition hampers us in the next stage.  The top ten student scores for 2010 derive from participants from three high School Chemistry programs.  NO more than TWO nominees to take the National USNCO Examination on 24 April can come from any ONE Chemistry program.  Therefore, only five students can be nominated to take the National Examinations.  These students all have scores above 30 ( 50%) on the Local Section Exam.  To pick additional nominees, I would be forced to nominate students with scores of 26 (43%), 24 (40%), 23(38%) and possibly 21(35%) respectively if two students from each of two alternative Chemistry programs were to be included.
 
   Lacking the broader participation of students from the other strong High School Chemistry programs in our region, my attempt to identify the TOP High School Chemistry students is seriously compromised.  If we are to sustain an acceptable academic standard {greater than 50% correct responses} the Red River Valley Local Section of the American Chemical Society will Nominate only five students to take the National USNCO Examinations on 24 April, 2010.  [ Since I cannot tell the difference between a score of 41 and a score of 40, I am going to allow six students to take the national examinations, but will only submit the two better responses for National scoring ]

.
Number of Correct Responses by Question 2010
.


 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1617
 1819
20
 22 17 14 22 9 12 22 23 13 22 20 16 15 18 5 16 11 14 10 10
 21 22 23 24 25 26 27 28
 29 30 31 32 33 34 35 36 37 38 39 40
 7 16 6 17 22 15 14 17 22 19 15 14 12 11 13 5 13 11 6 7
 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
 6 10 8 15 19 9 11 13 18 14 11 6 5 8 13 6 4 8 8

 19