# Does Sulfuric acid donate both of it H+ protons?

by gangsterlover
Tags: acid, donate, proton, protons, sulfuric
 P: 31 H2SO4 + H2O -> HSO4- + H3O+ A question by a noob. I get the fact that water can act as an acid and as a base. The oxygen "pulls" the hydrogen+ ion away from the sulfuric acid oxygen hydrogen bond an gets one itself and becomes positively charged, therefore a hydronium. However, I wonder does sulfuric acid donate its other proton as well. I see no reason why it wouldnt I mean it would still be somewhat stable, cause the charge is quite spread out over the 3 oxygen atoms, so more stable more acidic. At least thats how I am getting it when drawing those resonance structures. When the sulfuric acid molecule would lose both of them, I wonder wouldnt the sulfuric acid be quite unstable then. And become a base, wouldnt it just rip out the protons from the oxygen again, because of the size of sulfur in comparison with oxygen. The oxygen couldnt accept another proton, but what about another oxygen? People please help me I am in a mess here :( If I have stated something from ^^ above please tell me, I am still a underclass rookie. Thanks.