A buffer solution contains 0.270 M CH3NH3Cl and 0.446 M CH3NH2 (methylamine). Determine the pH change when 0.103 mol HBr is added to 1.00 L of the buffer.

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

Sorry i dont understand the question can you rephase it?

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

That is a lot of moles that you have