What is the oxidation number of manganese in the MnO41- ion? ...

[B]

What is the oxidation number of manganese in the MnO41- ion?
 
  A) +1
  B) +2
  C) +5
  D) +4
  E) +7

Question 2

Calculate the concentration (in M) of hydroxide ions in a solution at 25.0 C with a pOH of 4.223.
 
  A) 5.98  10-5
  B) 1.67  10-10
  C) 1.67  104
  D) 5.99  10-19
  E) 1.00  10-7

[cdmart10]

Answer to Question 1

E

Answer to Question 2

A

[B]

Great answer, keep it coming

[skipfourms123]

Thanks for the timely response, appreciate it