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If equal volumes of BaCl2(aq) and NaF(aq) solutions are mixed together, which will NOT give a precipitate (Ksp of BaF2 = 1.7 x 10-7)?
a. all will produce a precipitate
b. 0.0040 M BaCl2 and 0.020 M NaF
c. 0.010 M BaCl2 and 0.015 M NaF
d. 0.020 M BaCl2 and 0.0020 M NaF
e. 0.0150 M BaCl2 and 0.010 M NaF
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