Solutions of hydrogen in palladium may be formed by exposing Pd metal to H2 gas. The concentration..

Solutions of hydrogen in palladium may be formed by exposing
Pd metal to H2 gas. The concentration of hydrogen in the palladium depends on
the pressure of H2 gas applied, but in a more complex fashion than can be
described by Henry’s law. Under certain conditions, 0.94 g of hydrogen gas is
dissolved in 215 g of palladium metal (solution density = 10.8 g cm3 )

(a) Determine the molarity of this solution.

(b) Determine the molality of this solution.

(c) Determine the percent by mass of hydrogen atoms in this
solution.