A 2-mm-thick 5-L vessel made of nickel is used to store hydrogen gas at 358 K and 300 kPa. If the total inner surface area of the vessel is 1600 cm2, determine the rate of gas loss from the nickel vessel via mass diffusion. Also, determine the fraction of the hydrogen lost by mass diffusion after one year of storage.

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.