A 2.747-g sample of manganese metal is reacted with excess HCl gas to produce 3.22 L of H2 at 373 K and 0.951 atm and manganese chloride compound (MnClx) what is the formula of manganese chloride compond produced in the reaction?

Answer 1

Use PV = nRT to calculate the number of mols H2 that was generated. Convert that to mols HCl and from there x of MnClx.