Question

0.Onaddingwhichofthefollowing,thepHof20mLof0.1NHClwillnotalter?

a)20mLofdistilledwater b)1mLof0.1NNaOH

c)500mLofHClofpH=1 d)1mLof1NHCl​

Answer 1

Answer:

Explanation:

HCl+NaCl

1 mL of 0.1 N HCl is added to 99 mL solution of NaCl.

Total volume of solution after adding HCl=100 mL

[H  

+

]=  

100

0.1

​  

M=0.001M    

pH=−log(0.001)

So, pH=3