Chemistry Prac Exam questions (1 Viewer)

[wansmith]

hi, would anyone who has had their prac exam be able to tell me what it was and also any hard questions that were asked.

for example, in a past paper i was going through it asked 2 sources of error from a titration. assuming you have done it correctly, what can you write?

 

[lfc_reds2003]

there are obviously human sources of error

ie pipetting, filling up the burette to the top, reading wrong volume (a parallax error)

then other errors............

air bubbles in burette or pipette

not recording volume at first permanent colour change.....


thousands of errors one can make tho not us perfect titrators .. hehe