In all the following exercises M represents metal and X represents anion.
a) The salt, MX2 has a Ksp of 2.00e-6. If equal volumes of 0.0059M M(NO3)2 and 0.01M NaX are mixed, will solid form?
b)The salt, MX3 has a Ksp of 2.07e-10. If equal volumes of 0.0029M M(NO3)3 and 0.02M NaX are mixed, will solid form?
c)The salt, MX has a Ksp of 2.13e-6. If equal volumes of 0.0062M M(NO3)2 and 0.03M Na2X are mixed, will solid form?
My worked out answers:
a)Qion=0.00295*0.012=2.95e-7 which is less than the given Ksp 2.00e-6, hence solid won't form.
b)Qion=0.00145*(0.03)3=3.915e-8 which is greater than the given Ksp 2.07e-10, hence, solid will form.
c)Qion=0.0031*0.015= 465e-5 which is greater than the given Ksp 2.13e-6, hence solid will form.
What is your opinion about these answers? Are these answer correct? In my opinion, all these three answers are correct.