Could you provide me or let me know where to find more practical problems that relate to or are similar to the questions in the "CHE200 Tutorial- Chapter 4" and "CHE200 Paper 1 Winter 2023" so that I could improve on my "decision-making" and IQ in solving these types of problems?

The link to "CHE200 Tutorial- Chapter 4": https://drive.google.com/file/d/1yGmn4x2s49sQnJK4nUVNC2MFd9CL410H/view?usp=sharing

Image of "CHE200 Paper 1 Winter 2023":

Please also provide the solutions to the questions if possible! If you have too many practical problems, just put it in a file and share with me the link to that file through Google Drive.

Toronto Metropolitan University Department of Chemical Engineering Midterm Exam 1 CHE 200 (Chemical Engineering Fundamentals) Winter 2023 Time Limit: 100 minutes 1) A purification system with recycle is used to recover the solvent DMF from a waste gas containing 55mole% DMF in nitrogen. Assume that two thirds of the DMF in the gross feed (Stream n2) to the purification unit is recovered in stream n3. Calculate the molar flow rates n2, n3,n4,n5, and n6 in mol/s. (Mark: 9) D N 2) An aqueous solution of sulfuric acid with a concentration of 0.50molH2SO4 per litre of solution flows into a process unit at a rate of 1.25m3/min. The specific gravity of the solution is 1.03. Calculate: a) The mass concentration of H2SO4 in kg/m3. The molecular weight of H2SO4 is 98 g/mol and 1000L=1m3. b) The mass flow rate of H2SO4 in kg/s. c) The mass fraction of H2SO4. The density of reference is 1000kg/m3. (Mark: 8) 3) Consider a feed stream consisting of three components and flowing at 1mol/min as in the following figure. The stream is separated into two streams D and R. Suppose it is known that D=0.568mol/min,yA=0.211, and xB=0.416. What are the valuesof the remaining process variables (R,xA,xC,yB, and yC) ? (Mark: 8)