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An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a
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The pH scale measures the hydrogen ion concentration in a solution. What does P mean in this?
The pH value is the measure of hydrogen ion concentration in a solution. The term pH stands for the __________ in the solution.
নিচের কোন আয়নটি o2- এর সম-ইলেকট্রন বিশিষ্ট? (Which ion of the following has the same number of electrons as an o2- ion?) 
What is the pH of distilled water?
With increase in the temperature of pure (distilled) water, its
What is the approximate speed of sound in distilled water at 25°C (77°F)?
A 25 ml sample was diluted to 250ml with odourless distilled water so that the odour of the sample no longer perceivable. What was the Threshold odour number?
Primary active transport of hydrogen ion proton pump occurs in