Input interpretation
![carbon tetrabromide](../image_source/b2936141f96189e297fbcc9d1dc0faef.png)
carbon tetrabromide
Chemical names and formulas
![formula | CBr_4 name | carbon tetrabromide alternate names | carbon bromide | methane tetrabromide | tetrabromomethane mass fractions | Br (bromine) 96.4% | C (carbon) 3.62%](../image_source/d77d1dbc30d4085f83fc138161cc8710.png)
formula | CBr_4 name | carbon tetrabromide alternate names | carbon bromide | methane tetrabromide | tetrabromomethane mass fractions | Br (bromine) 96.4% | C (carbon) 3.62%
Lewis structure
![Draw the Lewis structure of carbon tetrabromide. Start by drawing the overall structure of the molecule: Count the total valence electrons of the bromine (n_Br, val = 7) and carbon (n_C, val = 4) atoms: 4 n_Br, val + n_C, val = 32 Calculate the number of electrons needed to completely fill the valence shells for bromine (n_Br, full = 8) and carbon (n_C, full = 8): 4 n_Br, full + n_C, full = 40 Subtracting these two numbers shows that 40 - 32 = 8 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 4 bonds and hence 8 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 32 - 8 = 24 electrons left to draw: Answer: | |](../image_source/e49b01550685d3642bb012c8dc4b3937.png)
Draw the Lewis structure of carbon tetrabromide. Start by drawing the overall structure of the molecule: Count the total valence electrons of the bromine (n_Br, val = 7) and carbon (n_C, val = 4) atoms: 4 n_Br, val + n_C, val = 32 Calculate the number of electrons needed to completely fill the valence shells for bromine (n_Br, full = 8) and carbon (n_C, full = 8): 4 n_Br, full + n_C, full = 40 Subtracting these two numbers shows that 40 - 32 = 8 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 4 bonds and hence 8 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 32 - 8 = 24 electrons left to draw: Answer: | |
3D structure
![3D structure](../image_source/2a0983abb5b4923654037b51cfc05423.png)
3D structure
Basic properties
![molar mass | 331.63 g/mol phase | solid (at STP) melting point | 89 °C boiling point | 190 °C density | 3.42 g/cm^3 solubility in water | insoluble](../image_source/003a3fe23447bf44e63c998cb6f67348.png)
molar mass | 331.63 g/mol phase | solid (at STP) melting point | 89 °C boiling point | 190 °C density | 3.42 g/cm^3 solubility in water | insoluble
Units
Solid properties (at STP)
![density | 3.42 g/cm^3 vapor pressure | 39.99 mmHg refractive index | 1.5942](../image_source/1fd3d8ff7a4aafc48dbc3200fa1e7432.png)
density | 3.42 g/cm^3 vapor pressure | 39.99 mmHg refractive index | 1.5942
Units
Thermodynamic properties
![specific heat capacity c_p | gas | 0.275 J/(g K) | solid | 0.4351 J/(g K) molar heat capacity c_p | gas | 91.2 J/(mol K) | solid | 144.3 J/(mol K) specific free energy of formation Δ_fG° | solid | 0.1438 kJ/g molar free energy of formation Δ_fG° | solid | 47.7 kJ/mol specific heat of formation Δ_fH° | gas | 0.253 kJ/g | solid | 0.08865 kJ/g molar heat of formation Δ_fH° | gas | 83.9 kJ/mol | solid | 29.4 kJ/mol molar heat of vaporization | 42 kJ/mol | specific heat of vaporization | 0.1266 kJ/g | molar heat of combustion | 423 kJ/mol | specific heat of combustion | 1.28 kJ/g | molar heat of fusion | 3.76 kJ/mol | specific heat of fusion | 0.0113 kJ/g | (at STP)](../image_source/014d7455d593bb42aa85903f4a22598c.png)
specific heat capacity c_p | gas | 0.275 J/(g K) | solid | 0.4351 J/(g K) molar heat capacity c_p | gas | 91.2 J/(mol K) | solid | 144.3 J/(mol K) specific free energy of formation Δ_fG° | solid | 0.1438 kJ/g molar free energy of formation Δ_fG° | solid | 47.7 kJ/mol specific heat of formation Δ_fH° | gas | 0.253 kJ/g | solid | 0.08865 kJ/g molar heat of formation Δ_fH° | gas | 83.9 kJ/mol | solid | 29.4 kJ/mol molar heat of vaporization | 42 kJ/mol | specific heat of vaporization | 0.1266 kJ/g | molar heat of combustion | 423 kJ/mol | specific heat of combustion | 1.28 kJ/g | molar heat of fusion | 3.76 kJ/mol | specific heat of fusion | 0.0113 kJ/g | (at STP)
Chemical identifiers
![CAS number | 558-13-4 Beilstein number | 1732799 PubChem CID number | 11205 PubChem SID number | 24892347 SMILES identifier | C(Br)(Br)(Br)Br InChI identifier | InChI=1/CBr4/c2-1(3, 4)5 RTECS number | FG4725000 MDL number | MFCD00000117](../image_source/0c62fad0f735e1d42e1ec43c093f602f.png)
CAS number | 558-13-4 Beilstein number | 1732799 PubChem CID number | 11205 PubChem SID number | 24892347 SMILES identifier | C(Br)(Br)(Br)Br InChI identifier | InChI=1/CBr4/c2-1(3, 4)5 RTECS number | FG4725000 MDL number | MFCD00000117
NFPA label
![NFPA label](../image_source/197dfdd25dcf6386e04c0219eee102fe.png)
NFPA label
![NFPA health rating | 2 NFPA fire rating | 0 NFPA reactivity rating | 0](../image_source/6eec7a66631232f90f293c9213ab5527.png)
NFPA health rating | 2 NFPA fire rating | 0 NFPA reactivity rating | 0
Safety properties
![flash point | 65 °C](../image_source/f4ce3e6928b5c7379de0b76585f786c4.png)
flash point | 65 °C
![DOT hazard class | 6.1 DOT numbers | 2516](../image_source/778d69a9c6ca7c25c760cc05363a0fd4.png)
DOT hazard class | 6.1 DOT numbers | 2516
Toxicity properties
![lethal dosage | 1000 mg/kg (oral dose for rats) short-term exposure limit | 4 mg/m^3](../image_source/8ace555a87c7f144b8701a99b50b10cb.png)
lethal dosage | 1000 mg/kg (oral dose for rats) short-term exposure limit | 4 mg/m^3
![probable lethal dose for man | 600 mL (milliliters) long-term exposure limit | 1.4 mg/m^3 (over 8 hours) RTECS classes | other](../image_source/d1c38411b171ec84653658e342dc665c.png)
probable lethal dose for man | 600 mL (milliliters) long-term exposure limit | 1.4 mg/m^3 (over 8 hours) RTECS classes | other