H2O and Ionic Compounds

(Polar molecules, Non-polar molecules, etc.)

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Sean Sugai 4E
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

H2O and Ionic Compounds

Postby Sean Sugai 4E » Mon Nov 11, 2019 12:47 am

Why is water a good solvent for ionic compounds? I understand that water's polarity plays a factor but what does that mean and is there anything else that makes it a good solvent for ionic compounds?

Andrew Jang 4D
Posts: 50
Joined: Sat Aug 17, 2019 12:18 am

Re: H2O and Ionic Compounds

Postby Andrew Jang 4D » Mon Nov 11, 2019 12:51 am

Due to its polarity, water dissociates ionic compounds that have a negatively and positively charged anion and cation, respectively.

Rachel Yu 1G
Posts: 113
Joined: Fri Aug 09, 2019 12:15 am

Re: H2O and Ionic Compounds

Postby Rachel Yu 1G » Mon Nov 11, 2019 2:22 pm

The large electronegativity difference between hydrogen and oxygen make water a polar molecule, resulting in partial positive and negative charges on the hydrogen and oxygen respectively. These partial charges bond with cations and anions, splitting ionic compounds. Other known solvents are organic compounds like ethanol,
ethyl acetate, hexane, but generally any polar molecule can dissolve ionic compounds due to their chemical property.

sarahsalama2E
Posts: 164
Joined: Fri Aug 30, 2019 12:16 am

Re: H2O and Ionic Compounds

Postby sarahsalama2E » Mon Nov 11, 2019 2:42 pm

The strongly different polar charges are able to interact with BOTH positive and negative charged ions, therefore disassociating them.


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