Suppose you are performing a gas-producing reaction with an unknown metal, X . X ( s ) + 2 H C l ( a q ) ⟶ X C l 2 ( a q ) + H 2
( g ) A sample of 0.243 g of the unknown metal produces 76.9 mL of H 2 gas. The gas is collected over water at an atmospheric pressure of 768.3 mm Hg at 23 oC, at which the vapor pressure of water is 21.1 mm Hg. Assume that the hydrogen gas behaves ideally. What is the experimental value for the molar mass of the metal in g/mol?
The vernal equinox occurs on March 20 or March 21 each year and signals the start of spring in the Northern Hemisphere (and fall in the Southern Hemisphere). The Earth tilts at an angle of 23.5 degrees on its axis relative to its plane of orbit around the sun. My source is history.com A, i think
