不用任何其它试剂.如何将HCI.NaOH.酚酞稀溶液和H2O四种无色液体加以鉴别? 查看更多

 

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(6分)(1)有两瓶CCl4和水都是无色液体,只用试管,不用任何其它试剂,如何鉴别?简要写出实验方案                                                    

                                                                        

(2)有一小块外表不规则且质地坚实的碳酸钙,设计一个实验方案用以测定这种碳酸钙的密度,提供的仪器有:托盘天平,100ml 量筒,要用到的试剂可任意取用        

                                                                             

                                                                          .

 

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(6分)(1)有两瓶CCl4和水都是无色液体,只用试管,不用任何其它试剂,如何鉴别?简要写出实验方案                                                    
                                                                        
(2)有一小块外表不规则且质地坚实的碳酸钙,设计一个实验方案用以测定这种碳酸钙的密度,提供的仪器有:托盘天平,100ml 量筒,要用到的试剂可任意取用        
                                                                          
                                                                       .

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(6分)(1)有两瓶CCl4和水都是无色液体,只用试管,不用任何其它试剂,如何鉴别?简要写出实验方案                                                    

                                                                        

(2)有一小块外表不规则且质地坚实的碳酸钙,设计一个实验方案用以测定这种碳酸钙的密度,提供的仪器有:托盘天平,100ml 量筒,要用到的试剂可任意取用        

                                                                             

                                                                          .

 

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(4分)有两瓶CCl4和水都是无色液体,只用试管,不用任何其它试剂,如何鉴别?简要写出实验方案                                                           

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(1)有两瓶CCl4和水都是无色液体,只用试管,不用任何其它试剂,如何鉴别?简要写出实验方案                                                    

                                                                        

(2)有一小块外表不规则且质地坚实的碳酸钙,设计一个实验方案用以测定这种碳酸钙的密度,提供的仪器有:托盘天平,100ml 量筒,要用到的试剂可任意取用        

                                                                             

                                                                          .

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