A helium-filled balloon has a volume of 4.50 L when the temperature is 22.5 degrees C and the barometric pressure is 747.3 mmHg. The balloon’s volume is neither increasing nor decreasing, so what is the pressure of the helium inside the balloon? I feel like there's either not enough information here to solve or the answer is simply 747.3 mmHg, but I'm not sure at all. Any help would be much appreciated.

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

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.

if it's not useful, feel free to report for mistake in answer.

the ratio of the conjugate base to the acid required to attain the desired ph.