hello there can anyone help me with this following question please
A student was asked to carry out an experiment to determine the initial rate of reaction of zinc and hydrochloric acid.
The student plans to collect a total of about 72 cm3 of hydrogen at RTP and to use an excess of zinc.
The student selects the following apparatus:
• the apparatus shown in the diagram
• 100 cm3measuring cylinder
• stop clock
• 2 decimal place balance
Outline how the student could carry out the experiment and explain how the results could be processed graphically.
Show all working in your calculations.
https://pmt.physicsandmathstutor.com/download/Chemistry/A-level/Topic-Qs/OCR-A/3-Periodic-Table-and-Energy/Set-G/3.2.2%20Reaction%20Rates%20QP.pdfquestion 5 I got everything but the calculations part I don't know how to get to the concentration of HCl