T H E OR Y C OMPE T IT ION
--- A NSWE R S H E E T ---
D E C E MB E R , 6
th
F I L L I N T H E F O L L OW I NG I NF O R M A T I ON
F IR S T NA ME
MID D L E NA ME
L A ST NA ME
C OUNT RY
C OD E
PR OB L E M I
I.1 T he pH of the solution is... Points:
1.5
A nswer :
I.2 C alculate the content (in grams) of hydrogen and carbon in the sample. Points:
0.5
A nswer : Hydrogen =
C arbon =
I.3 D etermine the mass of the reaction flask with its contents after the reaction. Points:
0.5
I.4 C alculate the pH of the mixture Points:
1.0
A nswer :
pH of the mixture =
I.5 How many grams of the unreacted reactant remain Points:
1.5
I.6 C alculate the acid value of sample retardation factor (Rf) (from low to high).
Points: 1.0
L auric acid
Myristic acid
I.8 C alculate the mass of methyl laurate formed Points:
1.5
A nswer :
I.9 C alculate the weight (in grams) of C2H3C l that will be formed after the reaction is complete
Points: 1.0
A nswer :
T he weight of C2H3C l =
--- D O NOT W R IT E B E L OW ---
PR OB L E M II
II.1 F ind the total pressure at the depth of 20.0 meter under the sea surface. Points:
1.0
A nswer:
II.2 C alculate the maximum time (in minutes) of his/her diving. Points:
2.0
II.3a. [ 0.5] C hoose the correct international unit for R -value. No Some international units
1
No Name of material (abbreviated) R -value
1 A 1.0
2 C 3.7
3 G 4.5
II.4 W hat is the depth at which this pressure difference occurs? Points:
1.0
II.5 C alculate his/her volume of the lungs at the depth of 30.0 m. Points:
1.0
II.6 F ind the value of b. Points:
2.0
II.7 W hat is the maximum angle between the refracted sunlight and the normal that the diver sees?
Points: 1.5
PR OB L E M II I
C ross the correct answer on the box provided. L ook for the letter that you think is the correct answer to the questions and then provide a cross on that letter below the number. E xample: if you think that the correct answer for problem III.1 is V , then you cross the letter V below III.1.
III.4 Point: 2.0
III.7 [ 2.0 points] D etermine the set of sex chromosomes of the K omodo dragon and mark the one correct genotype with a cross in the following table
Individual
