Input interpretation
metaboric acid
Chemical names and formulas
formula | HBO_2 Hill formula | BHO_2 name | metaboric acid IUPAC name | oxoborinic acid alternate names | ketoborinic acid | oxoborinic acid mass fractions | B (boron) 24.7% | H (hydrogen) 2.3% | O (oxygen) 73%
Lewis structure
Draw the Lewis structure of metaboric acid. Start by drawing the overall structure of the molecule, ignoring potential double and triple bonds: Count the total valence electrons of the boron (n_B, val = 3), hydrogen (n_H, val = 1), and oxygen (n_O, val = 6) atoms: n_B, val + n_H, val + 2 n_O, val = 16 Calculate the number of electrons needed to completely fill the valence shells for boron (n_B, full = 6), hydrogen (n_H, full = 2), and oxygen (n_O, full = 8): n_B, full + n_H, full + 2 n_O, full = 24 Subtracting these two numbers shows that 24 - 16 = 8 bonding electrons are needed. Each bond has two electrons, so in addition to the 3 bonds already present in the diagram add 1 bond. To minimize formal charge oxygen wants 2 bonds and boron wants 3 bonds. Identify the atoms that want additional bonds and the number of electrons remaining on each atom: Fill in the 1 bond by pairing electrons between adjacent highlighted atoms: Answer: | |
Basic properties
molar mass | 43.82 g/mol density | 2.49 g/cm^3
Units
Chemical identifiers
CAS number | 13460-50-9 PubChem CID number | 24492 PubChem SID number | 24865866 SMILES identifier | B(=O)O InChI identifier | InChI=1/BHO2/c2-1-3/h2H MDL number | MFCD00192264