le Window Help t 100%-- Wed Jul 11 7 ) × y ? owLV2 | Online teaching and i ×?-·-

Question

le Window Help t 100%-- Wed Jul 11 7 ) × y ? owLV2 | Online teaching and i ×?-·- eAssignment/takeCovalentActivity.do?locator-assignment-take&takeAssignm..; * Use the References to access important values if needed for this question. When 12.0 mL of a 2.87x10-4 M silver fluoride solution is combined with 15.0 mL of a 1.91x104 M sodium carbonate solution does a precipitate form? (yes or no) For these conditions the Reaction Quotient, Q, is equal to Submit Answer Retry Entire Group 9 more group attempts remaining

Explanation / Answer

Ksp of Ag2CO3 = [Ag+]^2[CO3^-2]

[Ag+] = 2.87*10^-4*(12.0/27)

        = 1.27*10^-4 M

   [CO3^2-] = 15*1.91*10^-4/27

            = 1.061*10^-4 M

Qsp = (1.27*10^-4)^2*(1.061*10^-4)= 1.711*10^-12

Ksp of Ag2CO3 = 8.1*10^–12

Qsp < Ksp. no precipitation takes place.

Q = 1.711*10^-12

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