In: Chemistry
Read up on the phenomenon called the common ion effect in your text. You add a small amount of NaOH to a test
tube containing cadmium nitrate solution. Initially nothing happens, but as you add more NaOH you begin to observe the
formation of a white, powdery solid that resembles snowflakes. Eventually, all the precipitate settles to the bottom of your
test tube.
a. Explain why you do not see the precipitate initially as you first begin to add NaOH (aq). In your explanation, discuss
the relationship between Q and Ksp at this point.
b. Explain why you eventually do see a precipitate. In your explanation, discuss the relationship between Q and Ksp at
this point.
c. Which of the following two reagents: HNO
3
or KOH, do you think will increase the solubility of cadmium hydroxide
solution? Explain your answer