Oxycodone (C18H21NO4), a narcotic analgesic, is a weak base with pKb = 5.47. Calculate the pH of a .00250 M oxycodone solution.

The pH of a 0.00250 M oxycodone solution is 9.96

Explanation:

 cM                     0  M         0 M

So dissociation constant will be:

Give c= 0.00250 M and = 5.47

Putting in the values we get:

Also

Thus pH of a 0.00250 M oxycodone solution is 9.96

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current