How many protons released for Polyprotics?

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Pranav Kadiyala 1A
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How many protons released for Polyprotics?

Postby Pranav Kadiyala 1A » Tue Dec 08, 2020 4:12 pm

Say we have H3PO4 reacting with water: How do you know how many protons it releases? If we were asked to write the equation, would it produce 3 H3O+ ions?

OwenSumter_2F
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Re: How many protons released for Polyprotics?

Postby OwenSumter_2F » Wed Dec 09, 2020 10:40 am

You would need more context dealing with bases. An acid only gives off protons if it has a base or bases to give them to. A polyprotic acid can release more than one proton but it doesn't have to. In fact, it is much easier for it to donate only one than two or more.

Aishwarya Kosgi 1F
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Joined: Wed Sep 30, 2020 10:00 pm

Re: How many protons released for Polyprotics?

Postby Aishwarya Kosgi 1F » Thu Dec 10, 2020 1:18 am

For this example, since it has 3 H atoms, it can donate up to 3 protons, but each time it donates one proton, the molecule gets a greater negative charge, so it is harder to pull more protons away.


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