Question 761
What is the oxidation state of sulfur in the sulphate ion (SO4^2-)?
Question 762
What is the oxidation state of sulfur in the thiosulphate ion (S2O3^2-)?
Question 763
What is the oxidation state of manganese in the permanganate ion (MnO4^-)?
Question 764
What color change is typically observed at the endpoint of a permanganate titration?
Question 765
In the reaction 2MnO4^- + 3Mn^2+ + 2H2O → 5MnO2 + 4H+, what is the stoichiometric coefficient of MnO2 in the products?