0.1摩尔每升盐酸稀释后的溶液ph值 0.1摩尔每升的氯化氨稀释后ph的变化
\u8ba1\u7b970.001\u6469\u5c14\u6bcf\u5347\u76d0\u9178\u6eb6\u6db2\u7684PH\u503c\uff1f\u56e0\u4e3a\u76d0\u9178\u662f\u5f3a\u9178\uff0c\u6c22\u79bb\u5b50\u53ef\u4ee5\u89c6\u4f5c\u5b8c\u5168\u7535\u79bb\uff0c\u6240\u4ee50.001\u6469\u5c14\u6bcf\u5347\u76d0\u9178\u6eb6\u6db2\u4e2d\uff0c\u6c22\u79bb\u5b50\u7684\u6d53\u5ea6\u4e5f\u662f0.001mol/L\uff0c\u4e5f\u5c31\u662f1*10^-3mol/L\uff0c\u6240\u4ee5pH=-log10^-3=3
NH4Cl\u6c34\u6eb6\u6db2\u7531\u4e8e\u6c34\u89e3\u800c\u5448\u9178\u6027\uff0c\u7a00\u91ca\u540e\uff0cNH4Cl\u7684\u6c34\u89e3\u7a0b\u5ea6\u589e\u5927\uff0c\uff0c\u4f46\u4f53\u79ef\u589e\u5927\u5bf9H\uff0b\u6d53\u5ea6\u7684\u5f71\u54cd\u5927\uff0c\u6240\u4ee5H\uff0b\u6d53\u5ea6\u662f\u51cf\u5c0f\u7684\uff0cPH\u503c\u662f\u589e\u5927\u7684\u3002
N（OH-）= 0.101 * 0.05 * 2-0.099 * 0.1 = 0.0002mol混合溶液的体积0.2L
OH-浓度0.0002/0.2 = 0.001mol / L
POH =-LG0 .001 = 3
pH值= 14-3 = 11
稀释多少倍呀?
绛旓細浣犲ソ銆傘愯В鏋愩戯紙1锛0.1 mol-1路L CH3COOH : 绋閲婄殑浣撶Н鍊嶆暟 螕 = 10 锛 鍒绋閲婂悗鐨勬憾娑鐨勭墿璐ㄧ殑閲忔祿搴︼細C = c/10 = 0.1/10 = 0.01 mol-1路L銆傦紙2锛0.1 mol-1路L HCl : 绋閲婄殑浣撶Н鍊嶆暟 螕 = 10 锛 鍒欑█閲婂悗鐨勬憾娑茬殑鐗╄川鐨勯噺娴撳害锛欳 = c/10 = 0.1/10...
绛旓細46153846銆傛垜浠煡閬 C=0.1mol/L锛孧W=36.46153846锛屽皢杩欎簺淇℃伅浠ｅ叆鍏紡锛屽嵆鍙眰鍑烘墍闇鐨鐩愰吀璐ㄩ噺锛坢锛夈傚啀鏍规嵁鎵闇璐ㄩ噺璁＄畻鎵闇鐨勪綋绉紙V锛夈傝绠楃粨鏋滀负锛氭墍闇鐨勭洂閰歌川閲忔槸 0.03646153846 鍏嬨傛墍浠ワ紝涓轰簡閰嶅埗0.1mol/L鐨勭洂閰革紝鎴戜滑闇瑕 0.03646153846 鍏嬬洂閰革紝骞朵娇鐢ㄩ傚綋鐨勬憾鍓绋閲鑷虫墍闇浣撶Н銆
绛旓細c = 蟻/M 鍏朵腑锛宑涓烘懇灏旀祿搴︼紝蟻涓鸿川閲忔祿搴︼紝M涓娴撶洂閰哥殑鎽╁皵璐ㄩ噺銆傛祿鐩愰吀鐨勬懇灏旇川閲忎负36.46 g/mol锛屼唬鍏ュ叕寮忓彲寰楋細c = 38.0% / 36.46 g/mol 鈮 1.042 mol/L 鎺ヤ笅鏉ラ渶瑕佽绠楁墍闇鐨勬懇灏旀暟锛歯 = cV 鍏朵腑锛宯涓烘懇灏旀暟锛孷涓轰綋绉傚皢鎵闇鐨勭█鐩愪綋绉浆鎹负鍗囷紝鍗砎 = 1000 mL / 1000 ...
绛旓細鐩愰吀鏈夋尌鍙戞э紝涓嶈兘鐩存帴閰嶇疆鎴愭爣鍑婧舵恫锛屽彲浠ラ厤鎴愬ぇ绾0.1mol/L鐨勬祿搴︼紝鐒跺悗鍦ㄦ爣瀹氬噯纭祿搴︺傚彲浠ュ彇12mol/L鐨勬祿鐩愰吀锛0.1x200/12=1.67mL, 绋閲鍒200mL锛屽啀鏍囧畾銆
绛旓細CV=m/M锛宮鏄渶瑕佸厛姹傜殑绾洂閰哥殑閲忥紝M鏄鐩愰吀鐨勬懇灏璐ㄩ噺锛孋鍜孷鏄閰嶇殑鐩愰吀鐨勬祿搴﹀拰浣撶Н銆0.1*1=m/36.5锛宮涓3.65鍏嬶紝杩涗竴姝ユ眰闇瑕佺殑浣撶Н銆娴撶洂閰哥殑瀵嗗害鏄1.14锛岀櫨鍒嗗惈閲忔槸37%锛岃繖鏍3.65/37%*1.14锛岀粨鏋滄槸8.65ml锛岀洂閰告槗鎸ュ彂鎴戜滑鍙栫殑鏃跺欒绋嶅井澶氬彇涓鐐广
绛旓細鏍规嵁绋閲鍓嶅悗婧惰川鐨勯噺涓嶄究鍙橈紝鍒楀紡 2mol/LX0.01L锛0.1mol/LXV V锛0.2L锛200mL 鍔犳按绋閲婅嚦200姣崌
绛旓細鏍规嵁C1V1=C2V2,鏃绋閲鍓嶅悗鐗╄川鐨勯噺涓嶅彉鍘熷垯,姹傚緱浣撶Н搴斾负30L
绛旓細鏍规嵁C1V1=C2V2锛屾棦绋閲鍓嶅悗鐗╄川鐨勯噺涓嶅彉鍘熷垯锛屾眰寰椾綋绉簲涓30L
绛旓細璐ㄩ噺锛堝厠锛 = 娴撳害锛坢ol/L锛 脳 鎽╁皵璐ㄩ噺锛坓/mol锛 脳 浣撶Н锛圠锛鐩愰吀鐨鎽╁皵璐ㄩ噺绾︿负 36.46 g/mol銆傜洰鏍囨祿搴︿负0.1 mol/L銆傚亣璁炬偍闇瑕佸埗澶1鍗囷紙1 L锛鐨勬憾娑銆傛墍浠ワ紝璐ㄩ噺锛堝厠锛= 0.1 mol/L 脳 36.46 g/mol 脳 1 L = 3.646 g 3.绉伴噺鐩愰吀锛 浣跨敤绮剧‘鐨勫ぉ骞崇О閲忓嚭鎵闇璐ㄩ噺鐨勭洂閰...
绛旓細1銆佽绠楅噺鍙娴撶洂閰哥殑浣撶Н c c = CV/c = 0.1 mol/L x500ml/12mol/L = 4.17 ml 2銆侀厤鍒舵柟娉曪細鐢ㄧЩ娑茬绉诲彇 4.17 ml娴撶洂閰革紝鍔犲叆500 ml 瀹归噺鐡朵腑锛屽姞钂搁姘村畾瀹广傚嵆鍙
