Empirical and molecular formula
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5 Terms
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water crystallisation = how the student doing this experiment can check that all the water has been removed
reheat to a constant mass
heat and reweigh until constant mass
2
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one advantage of fermentation at higher temperature
(ethanol) is produced at a faster rate
3
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one disadvantage of fermentation at a higher temperature
more energy is used
4
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this method used would result in ethanol being contaminated by ethanoic acid -
How does contamination occur
air gets in
oxidation occurs
5
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predict the type of crystal structure in solid zinc fluoride
why it has a high melting point
ionic (giant ionic lattice structure)
strong electrostatic forces between ions
between oppositely charged ions
F(-) and Zn(2+)
Note 
Flashcards (49)