Which of the following would you expect to act as bronsted-Lowry bases: Br-, H3PO4, H2O, Li+, NH4+, NH2-. Explain your choices.
Thank you
a Bronsted-Lowry base = proton acceptor
http://facultyfp.salisbury.edu/dfrieck/htdocs/212/rev/acidbase/Bronst.htm
what is the overall neutralization reaction equation and the net ionic equation for potassium hodrogen sulphate and sodium hydroxide. Need help with my hmwk thank you
which of the following would you expect to be bronsted lowry bases?
SO32-
Ag+
F-
To determine which of the given substances would act as Bronsted-Lowry bases, we need to understand what Bronsted-Lowry bases are.
Bronsted-Lowry acid-base theory is a definition of acids and bases based on the transfer of protons (H+ ions). According to this theory, acids are substances that donate protons, while bases are substances that accept protons.
Now, let's analyze each of the given substances and determine whether they can act as Bronsted-Lowry bases:
1. Br- (Bromide ion): The bromide ion is the conjugate base of hydrobromic acid (HBr). It does not contain a hydrogen atom, so it cannot donate a proton. Therefore, it cannot act as a Bronsted-Lowry base.
2. H3PO4 (Phosphoric acid): H3PO4 is an acid since it donates three protons (H+ ions). It cannot act as a Bronsted-Lowry base because it is an acid, not a base.
3. H2O (Water): Water can act as both an acid and a base, depending on the reaction. In the context of the given question, water is not listed as an acid, so we can consider it as a potential base. Water can accept a proton (H+) to become a hydroxide ion (OH-), making it a Bronsted-Lowry base.
4. Li+ (Lithium ion): The lithium ion lacks a hydrogen atom, so it cannot donate a proton. Therefore, it cannot act as a Bronsted-Lowry base.
5. NH4+ (Ammonium ion): The ammonium ion is the conjugate acid of ammonia (NH3). It has already accepted a proton and cannot accept another proton, so it cannot act as a Bronsted-Lowry base.
6. NH2- (Amine group): The amine group (NH2-) can accept a proton (H+) to become ammonia (NH3), so it can act as a Bronsted-Lowry base.
Based on the analysis, the substances that can act as Bronsted-Lowry bases are H2O (water) and NH2- (amine group).