\u6c2f\u79bb\u5b50\u7684\u6d4b\u5b9a\u65b9\u6cd5

1\u3001\u8fdb\u53e3\u5316\u80a5\u68c0\u9a8c\u65b9\u6cd5 \u6c2f\u79bb\u5b50\u7684\u6d4b\u5b9a\u65b9\u6cd5ZB G 20008\u201487\u672c\u6807\u51c6\u89c4\u5b9a\u6d4b\u5b9a\u8fdb\u53e3\u5316\u80a5\u4e2d\u6c2f\u79bb\u5b50\u542b\u91cf\u7684\u65b9\u6cd5\u30021 \u785d\u9178\u94f6\u6ef4\u5b9a\u6cd5\u9002\u7528\u8303\u56f4\uff1a\u9002\u7528\u4e8e\u590d\u5408\u80a5\u7b49\u3002\u65b9\u6cd5\u63d0\u8981\uff1a\u8bd5\u6837\u5728\u5fae\u9178\u6027\u6eb6\u6db2\u4e2d\uff0c\u52a0\u5165\u5b9a\u91cf\u7684\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2\uff0c\u4f7f\u6c2f\u79bb\u5b50\u6210\u4e3a\u6c2f\u5316\u94f6\u6c89\u6dc0\uff0c\u4ee5\u9ad8\u94c1\u94f5\u9492\u4e3a\u6307\u793a\u5242\uff0c\u7528\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u6ef4\u5b9a\u8fc7\u91cf\u7684\u785d\u9178\u94f6\u3002\u8bd5\u5242\uff1a1.3.1 \u785d\u9178(1+1)\u30021.3.2 \u785d\u9178\u94f6\u6eb6\u6db2\u3014c(AgNO3)=0.1mol/L\u3015\uff1a\u79f0\u53d617g\u785d\u9178\u94f6\u6eb6\u89e3\u4e8e\u6c34\u4e2d\uff0c\u7a00\u91ca\u81f31L\u30021.3.3 \u6c2f\u6807\u51c6\u6eb6\u6db2(1mg/mol)\uff1a\u51c6\u786e\u79f0\u53d61.6487g\u7ecf270\uff5e300\u2103\u70d8\u5e72\u7684\u57fa\u51c6\u6c2f\u5316\u94a0\u4e8e\u70e7\u676f\u4e2d\uff0c\u7528\u6c34\u6eb6\u89e3\u540e\uff0c\u79fb\u51651L\u5bb9\u91cf\u74f6\u4e2d,\u7a00\u91ca\u81f3\u6807\u7ebf,\u6df7\u5300,\u8d2e\u5b58\u5728\u5851\u6599\u74f6\u4e2d\u3002\u6b64\u6eb6\u6db21mL\u542b1mg\u6c2f\u79bb\u5b50(Cl-)\u30021.3.4 \u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u3014c(NH4CNS)=0.1mol/L\u3015\uff1a\u79f0\u53d67.6g\u786b\u6c30\u9178\u94f5\u6eb6\u4e8e\u6c34\u4e2d\uff0c\u7a00\u91ca\u81f31L\u3002\u6309\u4e0b\u6cd5\u6807\u5b9a\u5176\u6d53\u5ea6\uff1a\u51c6\u786e\u5438\u53d65mL\u6c2f\u6807\u51c6\u6eb6\u6db2\u4e8e150mL\u70e7\u676f\u4e2d\uff0c\u52a0\u51655mL\u785d\u9178\uff0c\u7528\u5fae\u91cf\u6ef4\u5b9a\u7ba1\u52a0\u51658mL\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2(1.3.2)\uff0c\u52a0\u70ed\uff0c\u5fae\u6cb8\u81f3\u6c89\u6dc0\u51dd\u805a\uff0c\u7a0d\u51b7\uff0c\u52a02mL\u9ad8\u94c1\u94f5\u9492\u6307\u793a\u5242\uff0c\u7528\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u6ef4\u5b9a\u8fc7\u91cf\u7684\u785d\u9178\u94f6\uff0c\u81f3\u51fa\u73b0\u7c89\u7ea2\u8272\u4e3a\u6b62\u3002\u540c\u65f6\u8fdb\u884c\u7a7a\u767d\u8bd5\u9a8c\u3002\u6309\u5f0f(1)\u8ba1\u7b97\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u7684\u5b9e\u9645\u6d53\u5ea6c(mol/L)\uff1ac=m/0.03545\u00d7(V0\uff0dV)\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026(1)\u5f0f\u4e2d\uff1a m\u2500\u2500 \u6240\u53d6\u6c2f\u6807\u51c6\u6eb6\u6db2\u4e2d\u6c2f\u79bb\u5b50\u7684\u8d28\u91cf\uff0cg\uff1bV0\u2500\u2500 \u7a7a\u767d\u8bd5\u9a8c(\u53738mL\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2)\u6240\u7528\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u7684\u4f53\u79ef\uff0cmL\uff1bV\u2500\u2500 \u6ef4\u5b9a\u8fc7\u91cf\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2\u6240\u7528\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u7684\u4f53\u79ef\uff0cmL\uff1b0.03545\u2500\u2500 \u76f8\u5f53\u4e8e1.00mL\u785d\u9178\u94f6\u6eb6\u6db2\u3014c(AgNO3)=1.000mol/L\u3015\u7684\u6c2f\u79bb\u5b50\u8d28\u91cf\uff0cg\u30021.3.5\u786b\u9178\u9ad8\u94c1\u94f5\u3014Fe(NH4)(SO4)2\u00b712H2O\u3015\u6307\u793a\u5242\uff1a\u6eb6\u89e340g\u786b\u9178\u9ad8\u94c1\u94f5\u4e8e100mL\u6c34\u4e2d\uff0c\u52a0\u5165\u7ea62mL\u785d\u9178\uff0c\u4f7f\u68d5\u8272\u6d88\u5931\u3002\u64cd\u4f5c\u7a0b\u5e8f\uff1a1.4.1 \u8bd5\u6db2\u5236\u5907\u79f0\u53d6\u8bd5\u68375g(\u51c6\u786e\u81f30.001g)\u4e8e100mL\u5bb9\u91cf\u74f6\u4e2d\uff0c\u52a050mL\u6c34\uff0c\u632f\u644710min\uff0c\u4f7f\u6c2f\u5b8c\u5168\u6d78\u51fa\uff0c\u7528\u6c34\u7a00\u91ca\u81f3\u6807\u7ebf\uff0c\u6df7\u5300\uff0c\u5e72\u6ee4\u30021.4.2 \u6c89\u6dc0\u51c6\u786e\u5438\u53d6\u4e0a\u8ff0\u6ee4\u6db2(1.4.1)50mL\u4e8e150mL\u70e7\u676f\u4e2d\uff0c\u52a05mL\u785d\u9178(1.3.1)\uff0c\u7528\u5fae\u91cf\u6ef4\u5b9a\u7ba1\u52a0\u51658mL\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2(1.3.2)\uff0c\u52a0\u70ed\u5fae\u6cb8\uff0c\u4ee5\u9a71\u9664\u6c2e\u7684\u6c27\u5316\u7269\uff0c\u51b7\u5374\u30021.4.3 \u6ef4\u5b9a\u52a02mL\u786b\u9178\u9ad8\u94c1\u94f5\u6307\u793a\u5242(1.3.5)\uff0c\u7528\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2(1.3.4)\u6ef4\u5b9a\u8fc7\u91cf\u7684\u785d\u9178\u94f6\uff0c\u76f4\u81f3\u51fa\u73b0\u7c89\u7ea2\u8272\u4e3a\u6b62\u3002\u7ed3\u679c\u8ba1\u7b97\uff1a\u6c2f\u79bb\u5b50\u7684\u767e\u5206\u542b\u91cf\u6309\u5f0f(2)\u8ba1\u7b97\uff1a\u6c2f(Cl%)=\u3014(V0\uff0dV).c\u00d70.03545/m\u3015\u00d7100\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026(2)\u5f0f\u4e2d\uff1aV0\u2500\u2500 \u7a7a\u767d\u8bd5\u9a8c(\u53738mL\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2)\u6240\u7528\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u4f53\u79ef\uff0cmL\uff1bV\u2500\u2500 \u6ef4\u5b9a\u8bd5\u6837\u6240\u7528\u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u7684\u4f53\u79ef\uff0cmL\uff1bc\u2500\u2500 \u786b\u6c30\u9178\u94f5\u6807\u51c6\u6eb6\u6db2\u7684\u6d53\u5ea6\uff0cmol/L\uff1b0.03545\u2500\u2500 \u76f8\u5f53\u4e8e1.00mL\u786b\u6c30\u9178\u94f5\u6eb6\u6db2\u3014c(NH4CNS)=1.000mol/L\u3015\u7684\u6c2f\u79bb\u5b50\u8d28\u91cf\uff0cg\uff1bm\u2500\u2500 \u6ef4\u5b9a\u65f6\u6240\u7528\u7684\u8bd5\u6837\u8d28\u91cf\uff0cg\u30022 \u6c2f\u79bb\u5b50\u9009\u62e9\u6027\u7535\u6781\u6cd5\u9002\u7528\u8303\u56f4\uff1a\u9002\u7528\u4e8e\u590d\u5408\u80a5\u3001\u786b\u9178\u94be\u7b49\u3002\u65b9\u6cd5\u63d0\u8981\u8bd5\u6837\u5728\u67e0\u6aac\u9178\u548c\u8fc7\u6c2f\u9178\u7684\u6df7\u5408\u6db2\u4e2d\uff0c\u6405\u62cc\u540e\uff0c\u5728pH2.5\u65f6\uff0c\u7528\u6c2f\u79bb\u5b50\u9009\u62e9\u6027\u7535\u6781\u548c\u7518\u6c5e\u53c2\u6bd4\u7535\u6781\u6d4b\u91cf\u6eb6\u6db2\u7684\u7535\u4f4d\uff0c\u4ece\u6807\u51c6\u66f2\u7ebf\u4e0a\u6c42\u5f97\u6c2f\u7684\u542b\u91cf\u3002\u4eea\u5668\uff1a2.3.1\u6570\u5b57\u663e\u793a\u79bb\u5b50\u6d3b\u5ea6\u8ba1\u30022.3.2 \u6c2f\u79bb\u5b50\u9009\u62e9\u6027\u7535\u6781\u30022.3.3 \u7518\u6c5e\u53c2\u6bd4\u7535\u6781\u30022.3.4 \u73bb\u7483pH\u7535\u6781\u3002\u8bd5\u5242\uff1a2.4.1 \u6df7\u5408\u9178\uff1a\u79f0\u53d6420g\u67e0\u6aac\u9178\uff0c\u6eb6\u4e8e166mL\u8fc7\u6c2f\u9178\u53ca700mL\u53bb\u79bb\u5b50\u6c34\u4e2d\uff0c\u7a00\u91ca\u81f31L\u30022.4.2 \u7f13\u51b2\u6eb6\u6db2(\u67e0\u6aac\u9178\u94a01mol/L)\uff1a\u79f0\u53d6294g\u67e0\u6aac\u9178\u4e8c\u94a0\u6eb6\u4e8e\u6c34\u4e2d\uff0c\u7a00\u91ca\u81f31L\u30022.4.3 \u6c2f\u6807\u51c6\u6eb6\u6db21mg/mL\uff1a\u6eb6\u6db2A\uff1a\u51c6\u786e\u79f0\u53d61.6847g\u7ecf270\uff5e300\u2103\u70d8\u5e72\u7684\u57fa\u51c6\u6c2f\u5316\u94a0\u4e8e\u70e7\u676f\u4e2d\uff0c\u7528\u53bb\u79bb\u5b50\u6c34\u6eb6\u89e3\u540e\uff0c\u79fb\u51651L\u5bb9\u91cf\u74f6\u4e2d\uff0c\u7a00\u91ca\u81f3\u6807\u7ebf\uff0c\u6df7\u5300\uff0c\u8d2e\u5b58\u5728\u5851\u6599\u74f6\u4e2d\u3002\u6b64\u6eb6\u6db21mL\u542b1mg\u6c2f\u79bb\u5b50(Cl-)\u3002\u6eb6\u6db2B\uff1a\u51c6\u786e\u5438\u53d650mL\u6eb6\u6db2A\u4e8e500mL\u5bb9\u91cf\u74f6\u4e2d\uff0c\u7528\u53bb\u79bb\u5b50\u6c34\u7a00\u91ca\u81f3\u6807\u7ebf\uff0c\u6df7\u5300\uff0c\u5e76\u8d2e\u5b58\u5728\u5851\u6599\u74f6\u4e2d\u3002\u6b64\u6eb6\u6db21mL\u542b0.1mg\u6c2f\u79bb\u5b50(Cl-)\u3002\u64cd\u4f5c\u7a0b\u5e8f\uff1a2.5.1 \u8bd5\u6db2\u5236\u5907\u51c6\u786e\u79f0\u53d6\u8bd5\u68370.1\uff5e0.2g(\u51c6\u786e\u81f30.001g)\u4e8e50mL\u5851\u6599\u5c0f\u70e7\u676f\u4e2d\uff0c\u51c6\u786e\u52a0\u51655.0mL\u6df7\u5408\u9178(2.4.1)\uff0c\u6405\u62cc15min\uff0c\u7528\u5fae\u91cf\u6ef4\u5b9a\u7ba1\u52a0\u51655.0mL\u53bb\u79bb\u5b50\u6c34\uff0c\u518d\u5438\u53d65.0mL\u7f13\u51b2\u6eb6\u6db2(2.4.2)\uff0c\u5728pH 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\u6807\u51c6\u66f2\u7ebf\u7684\u7ed8\u5236\u51c6\u786e\u5438\u53d60.5\uff0c1.0\uff0c2.0\uff0c5.0mL\u6c2f\u6807\u51c6\u6eb6\u6db2A\u53ca1.0\uff0c2.0\uff0c5.0mL\u6c2f\u6807\u51c6\u6eb6\u6db2B\uff0c\u5206\u522b\u7f6e\u4e8e7\u4e2a\u5851\u6599\u5c0f\u70e7\u676f\u4e2d\uff0c\u5e76\u7528\u88c5\u6709\u53bb\u79bb\u5b50\u6c34\u7684\u5fae\u91cf\u6ef4\u5b9a\u7ba1\u8865\u8db3\u5404\u6eb6\u6db2\u4e3a5.0mL\uff0c\u5206\u522b\u51c6\u786e\u52a0\u51655.0mL\u7f13\u51b2\u6eb6\u6db2\uff082.4.2\uff09\uff0c\u6df7\u5300\uff0c\u4e0e\u8bd5\u6837\u540c\u6837\u64cd\u4f5c\u3002\u5206\u522b\u6d4b\u91cf\u5404\u6eb6\u6db2\u7684\u7535\u4f4d\u5728\u534a\u5bf9\u6570\u5750\u6807\u7eb8\u4e0a\uff0c\u4ee5\u7535\u4f4d\u6beb\u4f0f\u6570\u4e3a\u6a2a\u5750\u6807\uff0c\u6c2f\u6807\u51c6\u6eb6\u6db2\u7684\u6d53\u5ea6\u4e3a\u7eb5\u5750\u6807\uff0c\u7ed8\u5236\u6807\u51c6\u66f2\u7ebf\u3002\u5f53\u542b\u6c2f\u91cf\u9ad8\u4f4e\u4e0d\u4e00\u65f6\uff0c\u5e94\u5206\u6bb5\u7ed8\u5236\uff0c\u5982\u6bcf\u6beb\u5347\u542b\u6c2f0.05\u03bcg\u4ee5\u4e0b\u30010.05\u03bcg\uff5e1\u03bcg\u30011\u03bcg\uff5e50\u03bcg\u5206\u522b\u7ed8\u5236\u3002\u7ed3\u679c\u8ba1\u7b97\uff1a\u6c2f\u767e\u5206\u542b\u91cf\u6309\u5f0f(3)\u8ba1\u7b97\uff1a\u5f0f\u4e2d\uff1am1\u2500\u2500 \u5728\u6807\u51c6\u66f2\u7ebf\u4e0a\u67e5\u5f97\u8bd5\u6837\u6eb6\u6db2\u4e2d\u6240\u542b\u6c2f\u7684\u8d28\u91cf\uff0cmg\uff1bm\u2500\u2500 \u8bd5\u6837\u8d28\u91cf\uff0cg\u3002\u6ce8\uff1a\u2460 \u6c2f\u7535\u6781\u5728\u4f7f\u7528\u524d\u5e94\u5728\u6bcf\u6beb\u5347\u542b\u67092\u03bcg\u5de6\u53f3\u7684\u6c2f\u6eb6\u6db2\u4e2d\u6d781h\uff0c\u4f7f\u5176\u6d3b\u5316\uff0c\u4f7f\u7528\u65f6\u7528\u53bb\u79bb\u5b50\u6c34\u6d17\u6da4\u6570\u6b21\uff0c\u7528\u6ee4\u7eb8\u7247\u5438\u5e72\u6c34\u5206\u5e76\u5411\u4e0b\u632f\u52a8\u7535\u6781(\u4e0e\u4f7f\u7528\u4f53\u6e29\u8868\u524d\u7684\u632f\u52a8\u76f8\u4f3c)\uff0c\u4ee5\u4fdd\u8bc1\u5185\u53c2\u6bd4\u6eb6\u6db2\u4e0e\u7535\u6781\u819c\u76f8\u63a5\u89e6\u3002\u2461 \u5f53\u6d4b\u91cf\u4e86\u9ad8\u6d53\u5ea6\u6c2f\u8bd5\u6db2\u540e\u518d\u6d4b\u4f4e\u6d53\u5ea6\u65f6\uff0c\u5fc5\u987b\u7528\u4e0d\u542b\u6c2f\u7684\u6c34\u6d172\uff5e3\u6b21\uff0c\u6bcf\u6b21\u6405\u62cc2\uff5e3min\uff0c\u6d4b\u7b2c\u4e00\u4e2a\u4f4e\u6d53\u5ea6\u8bd5\u6837\u65f6\uff0c\u54cd\u5e94\u65f6\u95f4\u5e94\u4e0d\u5c11\u4e8e10min\uff0c\u5e76\u5e94\u53cd\u590d\u6d4b\u91cf\u81f3\u7535\u4f4d\u503c\u4e00\u81f4\u65f6\u4e3a\u6b62\u30023 \u6c2f\u5316\u94f6\u6bd4\u6d4a\u6cd5\u9002\u7528\u8303\u56f4\uff1a\u9002\u7528\u4e8e\u590d\u5408\u80a5\u3001\u786b\u9178\u94be\u7b49\u3002\u65b9\u6cd5\u63d0\u8981\uff1a\u8bd5\u6837\u5728\u5fae\u9178\u6027\u6eb6\u6db2\u4e2d\u4e0e\u785d\u9178\u94f6\u5f62\u6210\u51dd\u4e73\u72b6\u6c2f\u5316\u94f6\u60ac\u6d6e\u6db2\uff0c\u8fdb\u884c\u6bd4\u6d4a\u30023.3 \u8bd5\u52423.3.1 \u785d\u9178(\u6bd4\u91cd1.42)\u30023.3.2 \u785d\u9178\u3014c(HNO3)=1mol/L\uff1a\u91cf\u53d662.5mL\u785d\u9178\u4e8e1L\u6c34\u4e2d\u30023.3.3 \u785d\u9178\u94f6\u6eb6\u6db2(0.1%)\uff1a\u6eb6\u89e30.1g\u785d\u9178\u94f6\u4e8e100mL\u6c34\u4e2d\u30023.3.4 \u6c2f\u6807\u51c6\u6eb6\u6db2(0.1mg/mL)\uff1a\u51c6\u786e\u79f0\u53d60.1649g\u7ecf270\uff5e300\u2103\u70d8\u5e72\u7684\u57fa\u51c6\u6c2f\u5316\u94a0\u4e8e\u70e7\u676f\u4e2d\uff0c\u7528\u6c34\u6eb6\u89e3\u540e\uff0c\u79fb\u51651L\u5bb9\u91cf\u74f6\u4e2d\uff0c\u7a00\u91ca\u81f3\u6807\u7ebf\uff0c\u6df7\u5300\uff0c\u8d2e\u5b58\u5728\u5851\u6599\u74f6\u4e2d\u3002\u6b64\u6eb6\u6db21mL\u542b0.1mg\u6c2f\u79bb\u5b50(Cl- )\u3002\u64cd\u4f5c\u7a0b\u5e8f\uff1a3.4.1 \u8bd5\u6db2\u5236\u5907\u79f0\u53d6\u8bd5\u68371g(\u51c6\u786e\u81f30.001g)\u4e8e250mL\u70e7\u676f\u4e2d\uff0c\u52a0\u516550mL\u785d\u9178(3 .3.2)\uff0c\u52a0\u70ed\u81f3\u8fd1\u6cb8\uff0c\u5728\u6c34\u6d74\u4e0a\u4fdd\u6e2930min\uff0c\u51b7\u5374\uff0c\u7528\u9884\u5148\u6d17\u81f3\u65e0\u6c2f\u79bb\u5b50\u7684\u6162\u901f\u6ee4\u7eb8\u8fc7\u6ee4\uff0c\u6ee4\u5165100mL\u5bb9\u91cf\u74f6\u4e2d\uff0c\u7528\u6c34\u6d17\u6da4\u70e7\u676f\u5b50\u6b8b\u6e23\uff0c\u5e76\u7528\u6c34\u7a00\u91ca\u81f3\u6807\u7ebf\uff0c\u6df7\u5300\u30023.4.2 \u6bd4\u6d4a\u51c6\u786e\u5438\u53d65mL\u4e0a\u8ff0\u8bd5\u6db2(3.4.1)\u4e8e50mL\u6bd4\u8272\u7ba1\u4e2d\uff0c\u52a0\u51657.5mL\u785d\u9178(3.3.2),\u7528\u6c34\u7a00\u91ca\u81f3\u7ea625mL,\u52a0\u516510mL\u785d\u9178\u94f6\u6eb6\u6db2(3.3.3)\uff0c\u5145\u5206\u6df7\u5300,\u4e0e\u6807\u51c6\u7ea7\u5dee\u540c\u65f6\u8fdb\u884c\u6bd4\u6d4a\u30023.4.3 \u6807\u51c6\u7cfb\u5217\u7684\u914d\u5236\u6839\u636e\u8bd5\u6837\u4e2d\u6c2f\u7684\u542b\u91cf\uff0c\u51c6\u786e\u5438\u53d60\uff0c1.0\uff0c2.0\uff0c3.0\uff0c4.0mL\u6c2f\u6807\u51c6\u6eb6\u6db2\uff0c\u5206\u522b\u7f6e\u4e8e\u4e00\u7ec450mL\u6bd4\u8272\u7ba1\u4e2d\uff0c\u52a07.5mL\u785d\u9178(3.3.2)\uff0c\u7528\u6c34\u7a00\u91ca\u81f3\u7ea625mL\uff0c\u52a0\u516510mL\u785d\u9178\u94f6\u6eb6\u6db2(3.3.3)\uff0c\u6df7\u5300\uff0c\u4e0e\u8bd5\u6837\u6eb6\u6db2\u8fdb\u884c\u6bd4\u6d4a\uff0c\u5e76\u9009\u53d6\u4e0e\u8bd5\u6837\u6eb6\u6db2\u6d4a\u5ea6\u6700\u63a5\u8fd1\u7684\u6807\u51c6\u6eb6\u6db2\u3002\u6ce8\uff1a\u785d\u9178\u94f6\u6eb6\u6db2\u5fc5\u987b\u540c\u65f6\u52a0\u5165\u6807\u51c6\u6eb6\u6db2\u548c\u8bd5\u6837\u4e2d\u3002\u7ed3\u679c\u8ba1\u7b97\uff1a\u6c2f\u7684\u767e\u5206\u542b\u91cf\u6309\u5f0f(4)\u8ba1\u7b97\uff1a\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026(4)\u5f0f\u4e2d\uff1ac\u2500\u2500 \u6c2f\u6807\u51c6\u6eb6\u6db2\u7684\u6d53\u5ea6\uff0cmg/mL\uff1bV\u2500\u2500 \u76f8\u5f53\u4e8e\u6c2f\u6807\u51c6\u7cfb\u5217\u6d4a\u5ea6\u7684\u4f53\u79ef\uff0cmL\uff1bm\u2500\u2500 \u6bd4\u6d4a\u65f6\u7684\u8bd5\u6837\u8d28\u91cf\uff0cg\u3002

\u7802\u4e2d\u6c2f\u79bb\u5b50\u542b\u91cf\u7684\u6d4b\u5b9a
\u4e00\u3001 \u8bd5\u6837\u7684\u5236\u5907
\u53d6\u7ecf\u7f29\u5206\u540e\u6837\u54c12kg\uff0c\u5728\u6e29\u5ea6\uff08105\u00b15\uff09\u2103\u7684\u70d8\u7bb1\u4e2d\u70d8\u5e72\u81f3\u6052\u91cd\uff0c\u51b7\u5374\u81f3\u5ba4\u6e29\u540e\uff0c\u7cbe\u786e\u79f0\u53d6500g\uff08m\uff09\uff0c\u88c5\u5165\u5e26\u585e\u78e8\u53e3\u74f6\u4e2d\uff0c\u7528\u5bb9\u91cf\u74f6\u53d6500ml\u84b8\u998f\u6c34\uff0c\u6ce8\u5165\u78e8\u53e3\u74f6\u5185\uff0c\u52a0\u4e0a\u585e\u5b50\uff0c\u6447\u52a8\u4e00\u6b21\uff0c\u653e\u7f6e2h\uff0c\u7136\u540e\u6bcf\u96945min\u6447\u52a8\u4e00\u6b21\uff0c\u5171\u64473\u6b21\uff0c\u4f7f\u6c2f\u76d0\u5145\u5206\u6eb6\u89e3\u3002

\u4e8c\u3001\u6ef4\u5b9a
\u5c06\u78e8\u53e3\u4e0a\u90e8\u5df2\u6f84\u6e05\u7684\u6eb6\u6db2\u8fc7\u6ee4\uff0c\u7136\u540e\u7528\u79fb\u6db2\u7ba1\u5438\u53d650ml\u6ee4\u6db2\uff0c\u6ce8\u5165\u4e09\u89d2\u74f6\u4e2d\uff0c\u518d\u52a0\u4e0a\u6d53\u5ea6\u4e3a5%\u7684\uff08W/V\uff09\u94ec\u9178\u94be\u6307\u793a\u52421ml\uff0c\u7136\u540e\u7528\u5df2\u6807\u5b9a\u597d\uff08TAgNO3\uff09\u7684\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2\u6ef4\u5b9a\u81f3\u5448\u73b0\u7816\u7ea2\u8272\u4e3a\u7ec8\u70b9\uff0c\u8bb0\u5f55\u6b64\u65f6\u6d88\u8017\u7684\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2\u7684\u6beb\u5347\u6570\uff08V1\uff09\u3002

\u4e09\u3001 \u7a7a\u767d\u8bd5\u9a8c
\u7528\u79fb\u6db2\u7ba1\u5438\u53d650ml\u84b8\u998f\u6c34\u5230\u4e09\u89d2\u74f6\u5185\uff0c\u518d\u52a0\u4e0a\u6d53\u5ea6\u4e3a5%\u7684\uff08W/V\uff09\u94ec\u9178\u94be\u6307\u793a\u52421ml\uff0c\u7136\u540e\u7528\u5df2\u6807\u5b9a\u597d\uff08TAgNO3\uff09\u7684\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2\u6ef4\u5b9a\u81f3\u5448\u73b0\u7816\u7ea2\u8272\u4e3a\u7ec8\u70b9\uff0c\u8bb0\u5f55\u6b64\u70b9\u6d88\u8017\u7684\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2\u7684\u6beb\u5347\u6570\uff08V2\uff09\u3002


\u56db\u3001 \u7802\u4e2d\u6c2f\u79bb\u5b50\u7684\u542b\u91cf\u6309\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97
WCl= TAgNO3*\uff08V1-V2\uff09*10*100/\uff08m*1000\uff09% \u5982\u679cm=500g \u5219 WCl =0.002* TAgNO3*\uff08V1-V2\uff09\u3002
\u6ce8: TAgNO3\uff1a\u4e3a\u785d\u9178\u94f6\u6807\u51c6\u6eb6\u6db2\u5bf9\u6c2f\u79bb\u5b50\u7684\u6ef4\u5b9a\u5ea6 \u3002


\u4e94\u3001\u8ba1\u7b97\u7ed3\u679c\u7cbe\u786e\u81f30.001% \u3002