A buffer is prepared by adding 150 ml of 1.0 m naoh to 250 ml of 1.0 m nah2po4. how many moles of hcl must be added to this buffer solution to change the ph by 0.18 units?

what does the table look like

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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