An oxidation state of or in K2CrO7
Question 1 Report
An oxidation state of or in K2CrO7
Answer Details
In K2CrO7, the total charge of the compound must be zero since it is neutral. We know that potassium (K) has a fixed oxidation state of +1 in compounds, so the total oxidation state contributed by the potassium atoms is +2 (since there are two K atoms).
To determine the oxidation state of chromium (Cr), we can use the following formula:
Total charge = Sum of oxidation states of each atom
Since K2CrO7 is neutral, the total charge is zero. We can substitute the oxidation state of potassium (+2) and the total number of potassium atoms (2) into the formula:
0 = 2(+1) + x + 7(-2)
Simplifying, we get:
0 = 2 - 14 + x
0 = x - 12
Therefore, the oxidation state of chromium in K2CrO7 is +6.
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