A buffer solution contains 0.303 M C6H5NH3Cl and 0.424 M C6H5NH2 (aniline). Determine the pH change when 0.108 mol HClO4 is added to 1.00 L of the buffer. pH after addition − pH before addition = pH change =

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.

What atom has the largest atomic radius

Which item is most likely part of the safety contract