Grade 11IIT JEE Entrance Exam
What is the pH of a solution at 25 degrees celcius that is 0.010 M in HCl and 0.025 M in HNO3
What is the pH of a solution at 25 degrees celcius that is 0.010 M in HCl and 0.025 M in HNO3
1 Answer
Bhavya
pH of a solution that has both acids (HCl and HNO3) is
HCl ---> H+ + Cl-
0.01 M 0.01M
HNO3 ---> H+ + NO3-
0.025M 0.025M
totat [H+] =0.01 +0.025 =0.035
pH = -log[H+]
= -log[3.5 *10-2]
= 1.456
HCl ---> H+ + Cl-
0.01 M 0.01M
HNO3 ---> H+ + NO3-
0.025M 0.025M
totat [H+] =0.01 +0.025 =0.035
pH = -log[H+]
= -log[3.5 *10-2]
= 1.456
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