katherinew
第2楼2006/06/02
6.乙酸–乙酸钠缓冲液(0.2 mol/L)
pH(18℃) 0.2 mol/L NaAc(毫升) 0.3 mol/L HAc(毫升) pH(18℃) 0.2 mol/LNaAc(毫升) 0.3 mol/LHAc(毫升)
2.63.84.04.24.44.6 0.751.201.802.653.704.90 9.258.808.207.356.305.10 4.85.05.25.45.65.8 5.907.007.908.609.109.40 4.103.002.101.400.900.60
Na2Ac·3H2O分子量 = 136.09,0.2 mol/L溶液为27.22克/升。
*******************************************
不用加水稀释吗?