Multiple Choice
What is the correct chemical formula for the ionic compound named aluminum sulfite?
74
views
3. Chemical Reactions
Naming Ionic Compounds
Multiple Choice
Which of the following is the correct IUPAC name for Au2O3?
A
Digold trioxide
B
Aurate oxide
C
Gold(I) oxide
D
Gold(III) oxide
Verified step by step guidance1
Identify the elements and their quantities in the compound Au2O3: there are 2 gold (Au) atoms and 3 oxygen (O) atoms.
Determine the oxidation state of gold in Au2O3 by using the fact that oxygen typically has an oxidation state of -2.
Set up the equation for the total charge balance: let the oxidation state of gold be x, then 2(x) + 3(-2) = 0.
Solve the equation for x to find the oxidation state of gold in the compound.
Use the oxidation state found to write the correct IUPAC name as 'Gold(III) oxide', indicating gold has a +3 oxidation state.
Related Videos
Related Practice
