The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas is collected over water at 298K and have a total pressure of 745 mm Hg, what madd of hydrogen is produced? A possibly useful table of water vapor pressure is provided below.
Mg(s)+2HCl(aq) --> MgCl2(aq) + H2(g) T(Celcius) P(mm Hg)
20 17.55 25 23.78 30 31.86