200g/L NAOH 与 30% NAOH 哪个浓度比较高?要怎么比较?
问题描述：
200g/L NAOH 与 30% NAOH 哪个浓度比较高?要怎么比较?
答
假设有1L的2种溶液
200g/L NAOH ===200g
30% NAOH == 1000*30%==300g
所以30% NAOH 大于200g/L NAOH