ekjchale#1
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need help with part c (1 Viewer)
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Essentially, scoring full marks on this question requires a response that explains both washing and drying. Based on this, here is a sample response that I believe may help:
This is a gravimetric analysis and requires accuracy. If you weigh the filter paper while it is still wet the result will be inaccurate because the mass of the precipitate will be inflated. Therefore it is essential to make sure that all the filter paper and precipitate are 100% dry. You must also wash the solution thoroughly to ensure that all the precipitate goes through to be collected, otherwise the recorded mass will not have all the precipitate recorded.
I hope this helps!
This is a gravimetric analysis and requires accuracy. If you weigh the filter paper while it is still wet the result will be inaccurate because the mass of the precipitate will be inflated. Therefore it is essential to make sure that all the filter paper and precipitate are 100% dry. You must also wash the solution thoroughly to ensure that all the precipitate goes through to be collected, otherwise the recorded mass will not have all the precipitate recorded.
I hope this helps!
ekjchale#1
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thanks a lot jimmyEssentially, scoring full marks on this question requires a response that explains both washing and drying. Based on this, here is a sample response that I believe may help:
This is a gravimetric analysis and requires accuracy. If you weigh the filter paper while it is still wet the result will be inaccurate because the mass of the precipitate will be inflated. Therefore it is essential to make sure that all the filter paper and precipitate are 100% dry. You must also wash the solution thoroughly to ensure that all the precipitate goes through to be collected, otherwise the recorded mass will not have all the precipitate recorded.
I hope this helps!
Would the following working help?Hivaclibtibcharkwa said:
The written part reads:
Assume complete ionization (not entirely sure whether it says "ionization") of NaCl.
Freezing point of pure solvent.
No. of ions (not entirely sure whether it says "ions") dissociated.
No. of ions dissociated.
I must admit that this person's handwriting is not the easiest to read but I hope that with your knowledge you may be able to determine exactly the missing/uncertain words.