Which of the following pairs of compounds could NOT be used to create a buffer solution? Would it be:
w) HCL and NaCl (read: H - C - L and N - A - C - L)
x) HCN and NaCN (read: H - C - N and N - A - C - N)
y) NH3 and NH4Cl (read: N - H - 3 and N - H - 4 - C - L)
z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)
w) HCL and NaCl (read: H - C - L and N - A - C - L)
x) HCN and NaCN (read: H - C - N and N - A - C - N)
y) NH3 and NH4Cl (read: N - H - 3 and N - H - 4 - C - L)
z) HNO2 and NaNO2 (read: H - N - O -2 and N - A - N - O - 2)