Calculate [HgCl$_2$$^{-2}$] in a solution prepared by adding 0.0200 mol of NaCl to 0.250 L of a 0.100-M HgCl$_2$ solution.
A 5.25x 10$^{-5}$ M
B 0.6999 M
C 1.2x 10$^{13}$ M
D 0.7x 10$^{-3}$ M
Question 6
3 Points
The odor of vinegar is due to the presence of acetic acid, CH$_3$CO$_2$H, a weak acid. Which of the following lists, in order of
descending concentration, has all of the ionic and molecular species present in a 1-M aqueous solution of this acid?
A [CH$_3$CO$_2$H]>[H$_3$O$^+$]=[CH$_3$CO$_2$$^-$]>[OH$^-$]
B [H$_2$O]>[CH$_3$CO$_2$H]>[H$_3$O$^+$]=[CH$_3$CO$_2$$^-$]
C [H$_2$O]>[CH$_3$CO$_2$H]>[H$_3$O$^+$]=[CH$_3$CO$_2$$^-$]>[OH$^-$]
D [H$_2$O]>[CH$_3$CO$_2$H]>[H$_3$O$^+$]=[OH$^-$]>[CH$_3$CO$_2$$^-$]
