"Engineering Chemistry Lab Manual" is a guidebook that provides step-by-step instructions on performing laboratory experiments in engineering chemistry. The manual may cover various topics such as the Estimation of total hardness, alkalinity, and Dissolved oxygen etc. The manual may contain background information on the principles and theories behind the experiments, as well as questions for students to answer to reinforce their understanding of the concepts. Overall, an "Engineering Chemistry Lab Manual" is an essential resource for students and instructors in the field of engineering chemistry, as it provides a practical and hands-on approach to learning chemistry concepts through laboratory experiments.