What is the formal charge of H in HCO3-?

If youre looking for the formal charge of the Molecule HCO2- then its just the -1. If youre looking for individual Atom formal charges, dram the lewis diagram of the entire atom. Draw out all of the single or double bonds and add all the lone electrons. USe the equation (Group number of element-lone electrons-Bonding electrons/2) This will be your formal charge for each atom.