欲使0.1mol/L的<img class="kfformula" src="20200629/1593414371655621.png" data-latex="{CH}_{3}COONa" width="110" height="34"/>溶液中,c(<img class="kfformula" src="20200629/1593414371705821.png" data-latex="{Na}^{+}" width="58" height="33"/>)/c(<img class="kfformula" src="20200629/1593414371315923.png" data-latex="{CH}_{3}{COO}^{-}" width="118" height="34"/>)更接近于1:1 ,应采取的措施是()。
③
加入适量<img class="kfformula" src="20200629/1593414371383535.png" data-latex="{CH}_{3}COOH" width="98" height="30"/>