0.01 M HCl দ্রবণের pH কত?

0.01 M HCl দ্রবণের pH কত? ?

Created: 1 year ago | Updated: 2 months ago | Created By:

Sadifa Akter Priya

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Institution: বঙ্গবন্ধু শেখ মুজিবুর রহমান বিজ্ঞান ও প্রযুক্তি বিশ্ববিদ্যালয় (BSMRSTU) Exam: A ইউনিট || বঙ্গবন্ধু শেখ মুজিবুর রহমান বিজ্ঞান ও প্রযুক্তি বিশ্ববিদ্যালয় || 2011
Topic: Chemistry (রসায়ন), Subject: General Science (সাধারণ বিজ্ঞান)

Best Answer Explained in Below-:

To determine the pH of a 0.01 M HCl (hydrochloric acid) solution, we need to understand how pH is calculated. The pH scale is based on the concentration of hydrogen ions (H⁺) in a solution. The formula for calculating pH is:

\[ \text{pH} = -\log[H^+] \]

In the case of strong acids like HCl, it dissociates completely in water. Therefore, a 0.01 M solution of HCl will provide an equal concentration of hydrogen ions:

\[ [H^+] = 0.01 \, \text{M} \]

Substituting this concentration into the pH formula:

\[ \text{pH} = -\log(0.01) \]

Calculating the logarithm:

\[ \log(0.01) = -2 \]

Thus:

\[ \text{pH} = -(-2) = 2.0 \]

This means a 0.01 M HCl solution has a pH of 2.0. The low pH value indicates that it is acidic, as expected from a strong acid. Therefore, the correct answer is B) 2.0, as it reflects the high concentration of hydrogen ions in the solution.

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0.01 M HCl দ্রবণের pH কত? ?

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