[填空题]
Water dissociates partiallz3q *h; qnr:xty and the vvnjc:8afa o(j.gkv5 1alue of the ionic product constant of water atav fca8(vj:5kg n.1j o $25^{\circ}$ is $1.00\times10^{-14}$.
1.State an equation for the dissociation of water.
2.Calculate the pH of a $0.0100mol\:dm^{-3}$ of lithium hydroxide at 298K.
3.Explain whether a $0.0100mol\:dm^{-3}$ solution of calcium hydroxide will have a higher or lower pH than a $0.0100mol\:dm^{-3}$ solution of lithium hydroxide at the same temperature. $mol\:dm^{-3}$
