Analysis of Student Learning Outcomes in View of Mathematical Ability andAbility Chemistry Students at MAS Proyek Univa Medan on Buffer Solution Material.The aim of this research is to determine the mathematical abilities and analytical abilities of students in class XI IPA Madrasah Aliyah Swasta (MAS) Proyek Univa Medan on Buffer Solutions material. This type of research is cause and effect research. The data collected was in the form of mathematical ability test instruments, chemical analysis ability tests and student learning outcomes tests based on Low Order Thinking Skills (LOTS) and High Order Thinking Skills (HOTS). The results of this research are: (1) there is a linear and significant relationship relationship between mathematics ability and chemistry learning outcomes with Sig (1-tailed) value 0.001 <0.05; (2) there is a linear and significant relationship between chemical analysis abilities learning outcomes with a Sig(1-tailed) value of 0.004 <0.05; (3) there is a significant relationship between mathematical abilities and chemical analysis abilities on chemistry learning outcomes with a Sig(1-tailed) value 0.013 <0.05. Based on the research findings, it is concluded that there is a significant relationship between mathematical ability, analytical skills, and chemistry learning outcomes.