[mattal]

In the procedures of the experiement, i am doubtful that why after waming the beaker to dissolve all the acid and then cool the solute to room temperature and together with the rinsings into a volumetric flask. I know that at room temperature, the succinic acid is in solid form. I have a doubt that why not after dissolving All the acid and then put in the volumetric flask directly? 

[Borek]

If I understand your question correctly, you are asking why we let the solution cool before pouring it to the volumetric flask? In other words - why we don't transfer hot solution?

[mattal]

Yep

[Borek]

You are aware of the fact that volumetric glass is calibrate for room temperature?

http://www.titrations.info/pipette-burette

[mattal]

Thanks a lot