From Preparing for Your ACS Examination in General Chemistry: The Official Guide
Constants and Conversions
𝑅 = 8.314 𝐽 ∙ 𝑚𝑜𝑙 −1 ∙ 𝐾 −1
𝑅 = 0.0821 𝐿 ∙ 𝑎𝑡𝑚 ∙ 𝑚𝑜𝑙 −1 ∙ 𝐾 −1
NA = 6.022 x 1023 mol-1
h = 6.62 x 10-34 J∙s
c = 2.998 x 108 m∙s-1
0°C = 273.15 K
1 atm = 760 mmHg
1 atm = 760 torr
1. The speed of light is 3.0x108 m/s. What is this speed in nm/ms?
A. 3.0x10-4 nm/ms
B. 3.0x102 nm/ms
C. 3.0x1014 nm/ms
D. 3.0x1020 nm/ms
2. The density of helium is 0.164 kg/m3. What is this density in lb/ft3? 1 kg=2.20 lb and 1 m=3.28 ft.
A. 0.0102 lb/ft3
B. 0.110 lb/ft3
C. 1.18 lb/ft3
D. 12.7 lb/ft3
3. Based on the figure what volume should be reported for the liquid?
A. 20.8 mL
B. 20.68 mL
C. 20.6 mL
D. 20.57 mL
4. What is the correctly reported mass of water based on the data in the table?
A. 1.3 g
Mass of beaker and water 29.62 g
B. 1.30 g Mass of beaker only 28.3220 g
C. 1.298 g
D. 1.2980 g
5. What is the name of Ti3(PO4)4?
A. Titanium phosphate
B. Titanium (III) phosphate
C. Titanium (IV) phosphate
D. Titanium tetraphosphate
, 6. The formula of strontium hexafluorosilicate is SrSiF6. What is the formula of aluminum
hexafluorosilicate?
A. AlSiF6
B. Al2(SiF6)3
C. Al3SiF6
D. Al3(SiF6)2
7. Which is NOT named correctly?
A. MnO2 manganese (II) oxide
B. CuSO4 copper (II) sulfate
C. Na3PO4 sodium phosphate
D. CaF2 calcium fluoride
8. What is the correct name for N2O5?
A. Nitrogen (II) oxide
B. Nitrogen (V) oxide
C. Dinitrogen oxide
D. Dinitrogen pentoxide
9. What is the formula of sulfur trioxide?
A. SO2
B. SO3
C. SO32-
D. SO42-
10. What is the name of HBrO4 (aq)?
A. Bromic acid
B. Bromous acid
C. Hydrobromic acid
D. Perbromic acid
11. What is the formula of hydroiodic acid?
A. HI (aq)
B. HIO (aq)
C. HIO2 (aq)
D. HIO3 (aq)
12. If a palladium nanoparticle has a density of 12.0 g/cm3, what is the mass of a nanoparticle with a
volume of 1.84x10-21 cm3?
A. 2.21x10-20 g
B. 1.63x10-20 g
C. 6.52x10-21 g
D. 1.53x10-22 g
13. Which sample has the largest volume? The density of aluminum is 2.7 g/cm3 and for copper is 9.0
g/cm3.
A. 1.0 g aluminum
B. 5.0 g aluminum
C. 1.0 g copper
D. 5.0 g copper