If sodium arsenite is Na3AsO3, the formula for calcium arsenite would be

Question

Chemistry

Tobias Kidd

7 January, 19:41

If sodium arsenite is Na3AsO3, the formula for calcium arsenite would be

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Answers (1)

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Ruby Moss · Answer 1

Ca₃ (AsO₃) ₂

Explanation:

Sodium arsenite, with the chemical formula Na₃AsO₃, is formed by the cation Na⁺ and the anion AsO₃³⁻. For the molecule to be neutral, 3 cations Na⁺ and 1 anion AsO₃³⁻ are required.

Calcium arsenite would be formed by the cation Ca²⁺ and the anion AsO₃³⁻. For the molecule to be neutral, we require 3 cations Ca²⁺ and 2 anions AsO₃³⁻. The resulting chemical formula is Ca₃ (AsO₃) ₂.