Video Transcript

What is the oxidation variety of oxygen in hydrogen peroxide?

The oxidation variety of an aspect such as oxygen defines its level of oxidation. We can think that the oxidation number together the variety of electrons removed from that element. Oxidation numbers, sometimes dubbed oxidation states, are often either an unfavorable or positive. When an oxidation state is negative, electrons have been gained. However when an oxidation state is positive, electrons have been removed.

over there is a collection of oxidation state rules we deserve to use come predict oxidation number of various elements. Once an aspect occurs in a reaction in its elemental form, such together oxygen existing together molecular oxygen, that oxidation state is zero. The oxidation state of an ion is that is charge, so a sodium one add to ion would have an oxidation state of to add one. When elements kind a neutral compound, the sum of the oxidation numbers need to be zero. The oxidation state that alkali metals is add to one when in a compound. The oxidation state of alkaline planet metals is plus two as soon as in a compound.

as soon as halogens show up in compounds, your oxidation states are most often minus one, with some exceptions. As soon as hydrogen shows up in a compound, the oxidation state is regularly plus one. However, in metal hydrides, such together magnesium hydride, hydrogen bring away on one oxidation state that minus one. Oxygen most often has an oxidation state that minus two, because that example, in the link water. In H2O, there are two hydrogens existing with oxidation claims of plus one, and also oxygen has an oxidation state the minus two. Overall, the sum of the oxidation states will it is in zero for this neutral compound.

However, we uncover that oxygen does periodically take on other oxidation states in peroxides, superoxides, and dioxygen difluoride. In the peroxide ion that O2 2-, oxygen has actually an oxidation state of minus one. In superoxides, such as sodium superoxide, oxygen has an oxidation state of minus one-half. In dioxygen difluoride, oxygen has actually an unexplained oxidation state of to add one.

utilizing these rules, let’s recognize the oxidation variety of oxygen in hydrogen peroxide. Hydrogen peroxide has actually the chemistry formula H2O2. Hydrogen will have actually the oxidation state of plus one. As the name implies, this compound is a peroxide, and thus oxygen will have actually the oxidation state that minus one.

We have the right to confirm this by detect the sum of the oxidation states, starting with the two hydrogens present. The full contributed through the hydrogens is to add two. The two oxygens in the peroxide have oxidation number of minus one. This offers a full contributed by the oxygens of minus two. The sum of these oxidation numbers need to yield zero for this neutral compound. We find that the sum of add to two and minus two is zero.


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Therefore, the oxidation number of oxygen in hydrogen peroxide is minus one.