Question

A 0.193 g sample of a metal, M, reacts completely with sulfuric acid according to the reaction M(s) + H2SO4(aq) → MSO4 (aq) + H2(g) A volume of 201 mL of hydrogen gas is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 1.0079 bar and the temperature is 25 °C. The vapor pressure of water at 25 °C is 0.03167 bar. Calculate the molar mass of the metal. molar mass: 0.0013 g/mol

Answer 1

Рряк Сдо * t H 0 0316 100 19= 0.9623 bar PHY 0.9162 3 ba1 x O.9869 alm 1 bar 0.963 4 alm TEmpe RAVRE f; 25 t Q13- 298 K 201 mL x O 00IL mu = 0.201L volw me, V= 201ML pv NO OF moles oF H2 RT 3 n 0.3634 am x 0.201L T.92 x 10 mr 0 08206Lal x 298 k k.ma 4 moe M ROOvLE m H GAS So -3 1.92 x10 mot H2 GA PRoovuro Py 7.92 x1o mH of M 0 1939 ৭ १ १. META- molk MASS of 1.92 x10 mr mot