物理化學實驗學習單

《物理化學實驗學習單》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、物理化學結報單元：酸鹼滴定曲線班級：實驗日期：102年10月9日組別：第门組學號及姓名：1100101128張益誠一、記錄數據室溫=_32_°C液溫：_27.7—°C氣壓=_754—mmHg藥品名稱、廠牌及纟屯度：SodiumHydroxde(粒0犬)HydrochloricAcid12N・SodiumAcetate儀器名稱及型號規格：PHMeterSP・2300標準緩衝溶液pH:4&7A:無水碳酸鋼固體之質量：第一次:0.1063g第二次:0.1142g平均:0.1103gB:鹽酸溶液配置濃鹽酸體積：4.2ml，配製體積：500.0ml配製濃度(約)：0.1008N計算：(12M*

2、4.2/500)=0.1008M(N)C:HC1標準溶液之滴定曲線第一次VHC10.02.04.06.08.08.59.09.510.010.512.5pH10.50210.1829.8719.5248.9718.6667.9847.4647.1846.9936.524VHC114.516.518.519.019.520.020.522.524.5pH6.1665.6645.0224.0963.2893.1212.9782.6622.4901.V是累計量，當然也可記為增加量，但是後面計算時要注意。HCI2.pH值=9〜7與pH值=5〜2有轉折點，pH值變化很大，在區間外每次滴入HC1

3、量約1〜2ml，在轉折點範圍內，改為每次0.5〜0.2ml。第二次VHCI0.02.04.06.08.08.59.09.510.010.512.5pH10.55310.2179.9079.5689.0598.8138.3857.6677.3147.0906.591VHCI14.516.518.519.019.520.020.522.524.5pH6.2205.8675.2474.7413.6963.2493.0602.7002.514D:緩衝溶液的作用溶液編號123456789100.1M-CHCOOH(ml)3200100353713170.1M-CHCOONa(ml)302010

4、035171373蒸餾水(ml)0002014100000pH值3.0557.3384.5195.6594.5154.4955.2914.6044.0603.585加入1滴0.1N-HC1的pH值3.0126.8954.5134.3124.4854.4785.2774.5924.0463.572加入2滴0.1N-HC1的pH值2.9756.6974.5083.9744.4624.4645.2614.5814.0313.561加入3滴0.1N-HC1的pH值2.9376.5924.5013.8154.4394.4505.2484.5754.0223.549加入4滴0.1N-HC1的pH

5、值2.9046.5274.4963.7004.4144.4365.2374.5674.0113.537加入5滴0.1N-HC1的pH值2.8706.4544.4903.6114.3904.4225.2274.5594.0023.527加1滴0.lN-NaOH的pH值3.0566.5504.4943.6604.4094.4325.2343.7183.3243.148加2滴0.lN-NaOH的pH值3.0796.6834.4993.7204.4274.4405.2403.7473.3663.157加3滴0.lN-NaOH的pH值3.0916.8724.5053.7944.4444.451

6、5.2463.7773.3883.173加4滴0.lN-NaOH的pH值3.1207.1744.5103.9084.4604.4605.2543.8113.4153.193加5滴0.lN-NaOH的pH值3.1447.4544.5154.0604.4744.4685.2633.8373.4403.224探20滴溶液的體積：1.0ml二、整理與計算A:HC1滴定結果第一次VHCI0.02.04.06.0&08.59.09.510.010.512.5pH10.50210.1829.8719.5248.9718.6667.9847.4647.1846.9936.524Vave1.003.0

7、05.007.008.258.759.259.7510.2511.513.5ApH0.3200.3110.3470.55303050.6820.5200.2800.1910.4960.358AV22220.50.50.50.50.522ApH/AV0.1600.1560.1740.2770.6101.3641.040.560.3820.2350.179VHCI14.516.518.519.019.520.020.522.524.5pH6.1665.6645