The concentration of S2O82- remaining at 1600 s is ________ M. ...

[Charlie]

The concentration of S2O82- remaining at 1600 s is ________ M.
 
  A) 0.036
  B) 0.014
  C) 0.043
  D) 0.064
  E) 0.029

Question 2

The addition of sodium hydroxide and ________ to water produces a buffer solution.
 
  A) HCl
  B) NaC2H3O2
  C) NaF
  D) NH3
  E) none of the above

[kilada]

Answer to Question 1

A

Answer to Question 2

E

[Charlie]

Thanks for the timely response, appreciate it

[irishcancer18]

TYSM