The Correct Formula For Lithium Acetate Is
1) LiC203H2.
2) Li(C2H302)2.
3) LizC2H302.
4) LiC2H302.
The Correct Answer and Explanation is :
The correct formula for lithium acetate is:
Option 4: LiC₂H₃O₂.
Explanation:
Lithium acetate is a simple ionic compound formed by the combination of lithium ions (Li⁺) and acetate ions (C₂H₃O₂⁻). Here’s a breakdown of the formula:
- Lithium Ion (Li⁺):
Lithium is an alkali metal in Group 1 of the periodic table, and it readily loses one electron to form a cation (Li⁺). Its charge is +1. - Acetate Ion (C₂H₃O₂⁻):
The acetate ion is a polyatomic ion, commonly represented as C₂H₃O₂⁻. It is derived from acetic acid (CH₃COOH), where a proton (H⁺) is removed from the carboxyl group (COOH), leaving behind the acetate ion. The acetate ion has a charge of -1.
Why the correct formula is LiC₂H₃O₂:
- Since lithium has a charge of +1 and the acetate ion has a charge of -1, one lithium ion combines with one acetate ion to form a neutral compound. This gives the formula LiC₂H₃O₂.
Explanation of Incorrect Options:
- LiC₂O₃H₂: This formula is incorrect because it suggests a different structure and arrangement of atoms compared to the acetate ion.
- Li(C₂H₃O₂)₂: This formula represents a compound where two acetate ions are bonded to one lithium ion. While this might seem plausible for some salts, lithium acetate typically exists as a simple 1:1 ratio of lithium to acetate ions.
- Li₂C₂H₃O₂: This formula suggests two lithium ions and one acetate ion. However, this would give an overall charge imbalance because two lithium ions (+2 charge) would not balance with one acetate ion (-1 charge), making it incorrect.
Thus, LiC₂H₃O₂ is the correct formula for lithium acetate.