The duration of the Pennsylvania SAT Chemistry exam is 1 hour and 30 minutes. This includes 85 multiple-choice questions and 2 grid-in questions. The exam is designed to assess students' understanding of chemistry concepts and their ability to apply these concepts to solve problems. The time limit is intended to challenge students' knowledge and problem-solving skills within a reasonable timeframe.

The duration of the Pennsylvania SAT Chemistry exam is consistent with the national SAT Chemistry exam. According to the College Board, the national SAT Chemistry exam also lasts 1 hour and 30 minutes. This standardized time frame ensures that all students across the United States, including those in Pennsylvania, have a fair and comparable testing experience. The length of the exam is designed to be challenging but not overwhelming, allowing students to demonstrate their knowledge and skills in chemistry.

Data from the College Board indicates that the SAT Chemistry exam covers a wide range of topics, including atomic structure, chemical bonding, stoichiometry, thermodynamics, kinetics, and organic chemistry. The exam is designed to test students' ability to understand and apply these concepts to solve problems. The time limit of 1 hour and 30 minutes is sufficient for students to complete the exam and demonstrate their knowledge and skills in chemistry.