Flashcards
solubilty
Cards in this deck (4)
- 1bonding effectsto dissolve a substance:
- bonds in it have to break
- bonds in solvent have to break
- new bonds need to form between solvent n substance
- substance will dissolve if bonds formed are same/greater than bonds broken - 2polar and non-polarpolar solvents - polar molecules like water (H bonds) and propanone (just LF and Dipole)
non polar - hexane
- like dissolves like (similar intermolecular forces n polars) - 3polar solvents- ionic substances dissolve in polar solvents
- ions attracted to oppo ends of polar molecules - ions pulled away from lattice = hydration
- alcohol dis in polar bc has polar OH bond but carbon chain isn't attracted - more C bonds = less soluble it is - 4non polar solventsnon polar substances (ethene) have LF - form similar bonds w non polar ones (hexane)
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- A level Chemistry (2)bonding & structure) Flashcards on solubilty, created by fatima farhan on 02/03/2018.
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- fatima farhan
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