Acids and Bases in our Bodies Our use hydrochloric acid to help digest foods.
It also kills and helps to keep us from getting sick.
Our produces lactic acid when we exercise.
Our uses a base to help with digestion

Svante Arrhenius
Chemist who devised a way to define acids and bases in 1887.
Believed that acids were substances that produce ions
In solution.
Bases were substances that produced ions in solution.

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution