100克浓度为25%的食盐水,若将其浓度提高为45%,需要加盐多少克?算书法的解答.
来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/24 00:11:18
100克浓度为25%的食盐水,若将其浓度提高为45%,需要加盐多少克?算书法的解答.
100克浓度为25%的食盐水,若将其浓度提高为45%,需要加盐多少克?算书法的解答.
100克浓度为25%的食盐水,若将其浓度提高为45%,需要加盐多少克?算书法的解答.
溶剂=100-100*25%=75克
45%的溶液中含溶剂1-45%=55%
溶液=75/55%=136.36克
需要加盐=136.36-100=36.36克.
32456845618555555555555555555555552222222222222548785454xvhjxdhyfgsdhfdscjygsdfjdfbdhbfdgcdsfiouenfsjfnfiuefljrdidrhgerhoemc545468656836556456568kjfdhuirdfeijfsemsekjdkfgjfldfdkfodsferjurfdfjknlkrjdfs...
全部展开
32456845618555555555555555555555552222222222222548785454xvhjxdhyfgsdhfdscjygsdfjdfbdhbfdgcdsfiouenfsjfnfiuefljrdidrhgerhoemc545468656836556456568kjfdhuirdfeijfsemsekjdkfgjfldfdkfodsferjurfdfjknlkrjdfsdofsjfisekfseo;;ekfosdfdfdhfhfdjnfdhdfdfgdfhsdiufhseifunuidhf656956526536635568754....0000hwreuhdhfiasjfsiakfodfoisjdfuhdkfkjfhe8fhweidjfdsnfkdjksdjfdlsfjkdjfkdjkjsdhfksejhiuehfidujdijfkdjfdkljfdifjoiejfioejfiudsjfkdfshfiuhfe653655sdkjfuhfuegfsdgfsehfushfefudsgfsdgfsydgfudsfdyfguydsfgeugyfudfhiedhfiusdfhuihfesgfuhfuiehfuihdfiudhfdgfyugfydfdjhuyugfeeygdhjguyzhfuuygzjhdyudguygfdjefydgfuydgfdshlHjdsuy dgfuydfuyegfu
收起
36