This study aims to determine the misconceptions and categories of misconceptions level of class XI MIPA students at SMAN 8 Pekanbaru and SMAN 6 Pekanbaru on the concept of acid-base material in the even semester of the 2022/2023 school year and data collection was carried out in February-April 2023. The sample in this study was class XI MIPA students at SMAN 8 Pekanbaru and SMAN 6 Pekanbaru tot…