Multiple Choice
Given the complex ion [Fe(CN)_6]^{4-}, what is the oxidation number of iron (Fe) in the complex?
44
views
6. Chemical Quantities & Aqueous Reactions
Calculate Oxidation Numbers
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the oxidation state of phosphorus (P) in the ion PO_3^{3-}?
A
-3
B
+3
C
+1
D
+5
Verified step by step guidance1
Identify the overall charge of the ion, which is \(-3\) for \(\mathrm{PO_3^{3-}}\).
Recall that oxygen typically has an oxidation state of \(-2\) in most compounds.
Set up an equation where the oxidation state of phosphorus is \(x\), and the total oxidation states sum to the ion's charge: \(x + 3(-2) = -3\).
Simplify the equation: \(x - 6 = -3\).
Solve for \(x\) to find the oxidation state of phosphorus: \(x = -3 + 6\).
Related Videos
Related Practice
Calculate Oxidation Numbers practice set
Problem sets built by lead tutorsExpert video explanations