Calculate the pOH and pH in a 0.02mol/L solution of ammonia. pOH=3.22pH=10.78pOH=10.78pH=3.22pOH=10.0pH=4.00pOH=4.00pH=10.0 Water is an amphoteric substance. What does this mean? Water can behave as a solid, liquid, and gas Water has unique and unpredictable properties Water can behave as an acid or a base Water is the universal solvent