Solve the following question given below:
Question I: Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 5.41 cubic meter of water.
Question II: Suppose that it takes 15.8 hours to drain a container of 97.8 m3 of water. What is the "mass flow rate," of water from the container?
Please provide clear step by step solution with notes on concepts and equations being used for above questions.