A weak acid titration with a strong base is somewhat different from the titration strong acid by strong base. In the titration of 25 ml of 0.1 mol / L NH3 by 0.1 HCl
mol / L, calculate:
a) the pH before the titration starts
b) the pH at the midpoint of the titration
c) pH without equivalence point
Given away.
Ka: NH4+ = 5.6 x 10^-10

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

Compare and contrast physical changes with chemical changes.

Word equation for k(s) +h2o(l) yield koh (aq) + h2