Answer:
A precipitate will not occur.
Explanation:
2NaF + Ba(NO3)2 --> BaF2 + 2NaNO3
NaF --> Na+ + F-
Ba(NO3)2 --> Ba2+ + 2NO3-
Number of moles of F- = 0.010 x 0.01
= 0.00010 mol
Number of moles of Ba2+ = 0.010 L x 0.01 M
= 0.00010 mol
total volume = 0.020 L
[F-] = [Ba2+]
= 0.00010/ 0.020
= 0.0050 M
Qsp = [Ba2+] . [F-]^2
= 0.0050 * (0.0050)^2
= 1.2 x 10^-7 < Ksp
A precipitate will not occur.
