Calculate the ph of hcl and naoh solutions after the addition of 0.75 l of water to: (a) 100 ml of 2.5 m hcl [2]

The pH of the new HCl solution is 0.53.

Explanation:

Volume of the HCl solution

Molarity of HCl solution ,

Volume of water added = 100 mL = 0.1 L

Molarity of HCl after addition of 0.75 L of water =

Final volume of the HCl solution after addition of 0.75 L of water =

[

HCl is a monotonic acid and its  one mole will give 1 mole of hydrogen ions in aqueous solution.

Molarity of hydrogen ion =

The pH of the new HCl solution is 0.53.

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

i think it's c. i'm not sure but i think so.