SuchSmallHands
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- Joined
- Nov 13, 2012
- Messages
- 1,391
- Gender
- Female
- HSC
- 2014
This calc raises a serious question for me. If we did get a titration question and all of the values were this far off what do we say is the average? There are no two or three values that are nearly identical (I can't remember what the margin for error or whatever is, they told us at the STANSW Chem study day if any of you went to that, but I didn't write it down and my teacher didn't know. I think it was like 0.05 mL or something for titration?). So which of these values would you guys take to calculate average? 1, 3 and 4 maybe? Or just 3 and 4 even? (yeah I know this question wasn't meant to be so seriously considered haha)Faisal Abdul wanted to find out how much ammonia was in his pee, so he titrated 25ml aliquots of his pee with 0.020M HCl 4 times.
The volume of the titres was as follows:
1. 27.98ml
2. 28.78ml
3. 27.78ml
4. 27.65ml
What was the concentration of ammonia in his pee?