For discussion on Chemistry
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Unread post by Fariha » Wed Aug 05, 2015 4:41 pm

pH বলতে কি বোঝায়?
pH হাইড্রজেন আয়নের ঋণাত্মক লগারিদম - এর অর্থ কি এবং এখানে log কেন ব্যবহার করা হয়?

Sadman Salim Asif
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Joined: Thu Nov 24, 2016 2:27 pm

Re: pH

Unread post by Sadman Salim Asif » Mon Jan 02, 2017 11:22 pm

Scientists often use logarithmic scales for quantities that vary widely in magnitude. Certainly, [H+] is one such quantity. In a 1 mol/L solution of sodium hydroxide in water, for instance, [H+] =10^(-14) . It's much more convenient to write down pH = 14.

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