Oxidation state of chromium in K3CrO8 is

To find the oxidation state of Chromium in K3CrO8, we can use the concept of oxidation numbers.

Step 1: Identify the oxidation states of the known elements. Potassium (K) is in group 1 of the periodic table and therefore has an oxidation state of +1. Oxygen (O) usually has an oxidation state of -2.

Step 2: Set up an equation. Let's denote the oxidation state of Chromium (Cr) as x. In K3CrO8, there are 3 potassium atoms, 1 chromium atom, and 8 oxygen atoms. The sum of the oxidation states in a neutral compound is zero. So, we can set up the following equation:

3(+1) + x + 8(-2) = 0

Step 3: Solve the equation for x.

3 + x - 16 = 0 x - 13 = 0 x = +13

Therefore, the oxidation state of Chromium in K3CrO8 is +13.