Help with chemistry A2 coursework?

Question

i need to find the order of reaction between acid and metal, i chose MG and HCL. i will change the concentration to find out the rate of reaction by collecting hydrogen gas in a gas syringe. however i am unsure what quantities to use, and how to get the order of reaction from these results, please help.

Answer 1

You have chosen quite a difficult reaction to investigate.

1. Health and safety with hydrogen generation

2. difficult to collect a gas with any accuracy using a gas syringe

would you consider an upturned burette easier and more accurate in my experience

3. Have you considered CO2 generation using HCl and CaCO3?

much easier

4. I seem to remember that Mg and HCl gives a fractional order of reaction a nightmare to analyse

See your teacher and discuss my recomendations

Sorry if that sounds big headed but I taught A level for a few years