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CBSE Class 9 Answered

what two precautions you would likely observe in the experiment to determine the mass percentaage og water imbided by the raisins and why?
 
Asked by amanansuresh | 25 Sep, 2015, 08:59: PM
answered-by-expert Expert Answer
The following PRECAUTIONS must be taken while performing an experiment to determine the mass percentaage of water imbided by the raisins:
  • The raisins should be removed from the beaker only after ensuring that they are completely swollen. 
  • Care should be taken while taking the raisins out from the beaker while using forceps. The forceps must not pierce into the raisins.
  • One must ensure that the raisins are dipped in water completely.
  • The swollen raisins should be proparly dried with the help of blotting paper before weighing it.
Answered by Hanisha Vyas | 26 Sep, 2015, 08:34: PM

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