HW1 F3 Help

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Fiona Latifi 1A
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Joined: Sat Sep 14, 2019 12:16 am

HW1 F3 Help

Postby Fiona Latifi 1A » Mon Sep 30, 2019 2:58 pm

Question F3 Part A on page F50 asks us to write the formula for nitric acid. I do not understand how to determine that the formula for nitric acid is HNO3. Can someone please explain? Thanks.

Chem_Mod
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Re: HW1 F3 Help

Postby Chem_Mod » Mon Sep 30, 2019 3:10 pm

For now, knowing the polyatomic ions and other names will be provided. As you go through problems, you will become familiar with the common names that we use.

EmilyJoo_1G
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Re: HW1 F3 Help

Postby EmilyJoo_1G » Mon Sep 30, 2019 9:25 pm

HNO3 would be its chemical formula because the polyatomic ion Nitrate (NO3-) is attached to a hydrogen ion. Acids are proton donors when they dissociate hence the H+ in front of NO3-. That's the Bronstead Lowry definition of acids and bases.

Camille 4I
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Re: HW1 F3 Help

Postby Camille 4I » Tue Oct 01, 2019 1:33 pm

Hello,

I understand that nitric acid is composed of NO3 and H, and that most acids have H in their formula. Also, I am aware that NO3 is an ion with a negative charge and H is an ion with a positive charge, which holds them together in an ionic bond. But how would you know that NO3 (nitrate) should be used in the formula for nitric acid?

saigorijavolu2k
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Joined: Sat Sep 28, 2019 12:15 am

Re: HW1 F3 Help

Postby saigorijavolu2k » Tue Oct 01, 2019 1:36 pm

Any acid that ends in -ic means it is made up of a nitrate ion. AN easy way to remember it would be I ATE something ICky.
Thus Nitric Acid=HNO3


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