Not sure why H2SO4(aq) rather than H+(aq).i_love_science said:Also, why is Br2(aq) in galvanic cells rather than Br2(l)?
H+ refers to a single hydrogen ion, while H2SO4 refers to sulfuric acid, which is composed of two hydrogen ions and one sulfate ion. In a galvanic cell, H+ ions are typically found in the electrolyte solution, while H2SO4 can be used as the electrolyte or as a reactant in the cell.
The presence of H+ ions in the electrolyte solution can increase the voltage of a galvanic cell, as they are involved in the redox reactions that produce electricity. H2SO4 can also affect the voltage by acting as a strong acid, which can help facilitate the transfer of electrons in the cell.
Br2(aq), or aqueous bromine, is a reactant in a galvanic cell. It is typically used in the cathode compartment, where it undergoes reduction and helps to produce a flow of electrons. It can also act as an electrolyte in some types of galvanic cells.
Br2(aq) and Br2(l) both refer to bromine, but in different states - aqueous and liquid, respectively. In a galvanic cell, Br2(aq) is more commonly used as it is easier to handle and can act as an electrolyte. Br2(l) can also be used in some cells, but it requires special handling and may not be as efficient.
Yes, H+ and Br2(aq) can be used together in a galvanic cell. In fact, many galvanic cells use both of these substances in their respective compartments to produce a flow of electrons. However, the specific design and conditions of the cell will determine the overall performance and efficiency of the cell.