Reference Tables Scavenger Hunt
ANSWERS
Directions: Using the Reference Tables for Chemistry, locate the following information.
1. Is C5H12 saturated or unsaturated
a. Ref. table:Q
2.
b. Answer:
saturated
Is the formation of water, from its elements endothermic or exothermic?
a. Ref. table: I
b. Answer: exothermic
3. Which salt is soluble in water NaPO4 or NiCrO4
a. Ref. table: F
b. Answer: NaPO4
4. What is the definition of STP, and give the values?
a. Ref. table: A _
b. Answer: standard Temp (273K) and Pressure (1atm)
5. Name C2H3O-2 or CH3COOa. Ref. table: E
b. Answer: acetate
6. What is the maximum amount of sulfur dioxide that will dissolve in 100g of water at 40
degrees Celsius, in grams?
a. Ref. table: G
b. Answer: 5g
7. What is the freezing point of fluorine? (note: students must recall that FP = MP)
a. Ref. table: S
b. Answer: 53 K
8. What is the Hf of water? Hv? c (specific heat)?
a. Ref. table: B
b. Answer: Hf = 334 J/g HV = 2260 j/j
9. What is the vapor pressure of water at 750C?
a. Ref. table: H
b. Answer 38 kPa
10. How much heat does it take to convert 20g of water to steam at 1000C?
a. Ref. table: T and B
b. Answer: Q=20(2260) = 45200 J
c = 4.18 j/gK
11. What is the prefix for 1/1000 of a meter?
a. Ref. table: c
b. Answer: milli
12. What is the molecular formula of ammonia?
a. Ref. table: L
b. Answer:
NH3
13. What is the formula for the permanganate ion?
a. Ref. table: E
b. Answer: MnO4-1
14. Identify the class of organic compounds this molecule belongs too CH3COCH2CH3
a. Ref. table: R
b. Answer: ketone
15. Identify the functional group for this hydrocarbon derivative CH3COCH2CH3
a. Ref. table: R
b. Answer: C=O, carbonyl
16. Write the symbol for a positron?
a. Ref. table: O
b. Answer:0+1e or
0
+1ß
17. What is the half-life of Pu-239?
a. Ref. table: N
b. Answer: 2.410 x 104 years
18. Name this following: H2CO3
a. Ref. table: K
b. Answer: Carbonic Acid
19. What is the atomic mass of silver?
a. Ref. table: Periodic Table
b. Answer:107.868
20. How much heat is released when LiBr dissolves in water?
a. Ref. table:I
b. Answer: 48.83 kJ of heat released
21. What is the electronegativity of chlorine?
a. Ref. table: S
b. Answer:3.2
22. What is the decay mode of Au-198?
a. Ref. table:N
23. What is the ionization energy of Rb?
b. Answer: beta
a. Ref. table: S
b. Answer: 403 kj/mol
24. Which atom is more likely to lose electrons, Al or Zn?
a. Ref. table: S
or J
b. Answer: Al
25. Is the C-F bond nonpolar covalent, polar covalent or ionic?
a. Ref. table: S
b. Answer: 2.6-4.0 = 1.4 = polar covalent
26. Write the electron configuration of potassium.
a. Ref. table: Periodic Table
b. Answer:2-8-8-1
27. At what temperature will water boil, when the atmospheric pressure is 55 kPa?
a. Ref. table: H
b. Answer: 87°C
28. What is the trend of atomic radii across period 3?
a. Ref. table: S or Periodic Table
b. Answer: gets smaller
29. Will Mn produce colored ions in solution? Why or why not?
a. Ref. table: Periodic Table
b. Answer: yes, transition metal
30. Will Al react with HCl to produce hydrogen gas?
a. Ref. table: J
b. Answer: Yes
31. What is the density of tin?
a. Ref. table: S
b. Answer: 7.287 g/cm3
32. Give the parts per million of solute for a solution containing 0.25g of sodium chloride in 200g
of water.
a. Ref. table: T
b. Answer: 0.25/200.25 x 106 = 1248.4ppm
33. If the accepted value for the mass of an object is 10.3g and a student found that the mass was
10.1g, what is the student’s percent error?
a. Ref. table: T
b. Answer:1.94%
34. If a peanut is burned in a calorimeter containing 50g of water, and the water temperature
changes from 450C to 570C, how many joules of energy were released by the peanut?
a. Ref. table:T
b. Answer: Q=mc∆T = 50(4.18)(12) =2508 J
35. What is the approximate percent composition of Na in NaCl? (FM of NaCl = 58g)
a. Ref. table: T and periodic table
b. Answer: 23/58 x 100 = 40%
36. Convert 43°C to Kelvin
a. Ref. Table: T
b. Answer: 316K
37. A sample of helium gas has a volume of 900. milliliters and a pressure of 2.50 atm at 298 K.
What is the new pressure when the temperature is changed to 336 K and the volume is
decreased to 450. milliliters?
a. Ref. Table: T
b. Answer: (900)(2.5)/298 = (450)(P2)/(336) = 5.64 atm
38. How many carbons make up heptane?
a. Ref. Table: P
b. Answer: 7
39. What color will orange turn in a basic solution?
a. Ref. Table: M
b. Answer: yellow
40. What is SI unit for energy?
a. Ref. Table: D
b. Answer: joule (J)
41. What is the concentration of NaOH if 14.0ml require 28.0 ml of 2.0 M HCl to reach the end
point?
a. Ref. table: T
b. Answer:4 M
42. What is the concentration of NaOH made by dissolving 20g of NaOH in enough water to make
0.500 L of solution? (FM of NaOH = 40g)
a. Ref. Table: T
b. 1M