If Kb for #NX_3# is #7.5x10^-6# , what is the pOH of a .175 M aqueous solution of NX3? Chemistry Solutions Solutions 1 Answer Michael Feb 22, 2017 #sf(2.94)# Explanation: #sf(pOH=1/2[pK_b-logb])# #sf(pK_b=-logK_b=-log(7.5xx10^(-6))=5.12)# #sf(b=[NX_3]=0.175color(white)(x)"mol/l")# #:.##sf(pOH=1/2[5.12-log(0.175)])# #sf(pOH=2.94)# Answer link Related questions How are solution, solute, and solvent related? Why do solutions become saturated? How does temperature affect solutions? How does a solution differ from a colloid? Calculate the amount of 1 M NaOH aqueous solution needed to make 100 mL of 0.5 M NaOH aqueous solution. How does buffering a solution change the solutions behavior? How does Benedict's solution change colour? Describe how would you prepare 1 L of a 1 M solution of sodium chloride. The gram formula weight... How do solutions differ from suspensions? How does a solution differ from a compound? See all questions in Solutions Impact of this question 10333 views around the world You can reuse this answer Creative Commons License