Atomic mass is an average of the elements.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What is the mass of 8 moles of sodium atoms

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3