Answered

IDNLearn.com provides a collaborative platform for sharing and gaining knowledge. Our platform provides detailed and accurate responses from experts, helping you navigate any topic with confidence.

### Chemistry Skill: Identifying Acid-Base Pairs

Phosphoric acid reacts with water to yield dihydrogen phosphate ions and hydronium ions:

Identify the conjugate acid-base pairs.

[tex]\[
H_3PO_4 + H_2O \rightleftharpoons H_2PO_4^{-} + H_3O^{+}
\][/tex]

Drag each item to the appropriate bin.

#### Available Items:
- [tex]\( H_2PO_4^{-} \)[/tex]
- [tex]\( H_2O \)[/tex]
- [tex]\( H_3PO_4 \)[/tex]
- [tex]\( H_3O^{+} \)[/tex]

#### Categories:
- Acid
- Conjugate base
- Base
- Conjugate acid

Sagot :

GinnyAnsweridn
To solve this problem and identify the conjugate acid-base pairs, let's break down the given chemical reaction:

[tex]\[ H_3PO_4 + H_2O \rightleftharpoons H_2PO_4^- + H_3O^+ \][/tex]

We'll start by identifying which substances are acids and which are bases in this reaction. Recall that an acid is a substance that donates a proton (H⁺), and a base is a substance that accepts a proton.

### Step-by-Step Solution

1. Identifying the Acid and Conjugate Base Pair:
- Acid: Phosphoric acid ([tex]\(H_3PO_4\)[/tex]) is donating a proton to become dihydrogen phosphate ion ([tex]\(H_2PO_4^-\)[/tex]). Therefore, [tex]\(H_3PO_4\)[/tex] is the acid.
- Conjugate Base: After donating a proton, [tex]\(H_3PO_4\)[/tex] becomes [tex]\(H_2PO_4^-\)[/tex], which is the conjugate base of [tex]\(H_3PO_4\)[/tex].

2. Identifying the Base and Conjugate Acid Pair:
- Base: Water ([tex]\(H_2O\)[/tex]) is accepting a proton to become the hydronium ion ([tex]\(H_3O^+\)[/tex]). Thus, [tex]\(H_2O\)[/tex] is the base.
- Conjugate Acid: After accepting a proton, [tex]\(H_2O\)[/tex] becomes [tex]\(H_3O^+\)[/tex], which is the conjugate acid of [tex]\(H_2O\)[/tex].

Using this information, we can now categorize each substance appropriately:

- Acid (donates a proton):
- [tex]\(H_3PO_4\)[/tex]
- Conjugate Base (what the acid becomes after donating a proton):
- [tex]\(H_2PO_4^-\)[/tex]
- Base (accepts a proton):
- [tex]\(H_2O\)[/tex]
- Conjugate Acid (what the base becomes after accepting a proton):
- [tex]\(H_3O^+\)[/tex]

### Summary of Bins

1. Acid:
- [tex]\(H_3PO_4\)[/tex]

2. Conjugate Base:
- [tex]\(H_2PO_4^-\)[/tex]

3. Base:
- [tex]\(H_2O\)[/tex]

4. Conjugate Acid:
- [tex]\(H_3O^+\)[/tex]

Thus, we have correctly identified the acid-base pairs in the chemical reaction.
We are happy to have you as part of our community. Keep asking, answering, and sharing your insights. Together, we can create a valuable knowledge resource. Find reliable answers at IDNLearn.com. Thanks for stopping by, and come back for more trustworthy solutions.