Q
QuestionChemistry

Fill in the name and empirical formula of each ionic compound that could be formed from the ions sr^2 +o^2 -,sr^2 +n^3 -,sr^2 +s^2 -,sr^2 +p^3 -
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Answer

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Step 1
: Identify the cation and anion in each ionic compound.

An ionic compound is formed by the combination of a cation (positive ion) and an anion (negative ion). In this problem, we are given three different anions that could combine with the Sr²⁺ cation (strontium ion).

Step 2
: Write the empirical formula for each ionic compound.

The empirical formula of an ionic compound is determined by the charges of the ions involved. For each ionic compound, we need to ensure that the total positive charge equals the total negative charge. a) Sr²⁺ and O²⁻ Since the charges on the ions are equal and opposite, one ion of each is needed to balance the charges: Sr²⁺ + O²⁻ → SrO b) Sr²⁺ and N³⁻ In this case, two Sr²⁺ ions are needed to balance the charge of three N³⁻ ions: 2Sr²⁺ + 3N³⁻ → Sr₂N₃ c) Sr²⁺ and S²⁻ Here, one Sr²⁺ ion is needed to balance the charge of one S²⁻ ion: Sr²⁺ + S²⁻ → SrS d) Sr²⁺ and P³⁻ Lastly, two Sr²⁺ ions are needed to balance the charge of three P³⁻ ions: 2Sr²⁺ + 3P³⁻ → Sr₃P₂

Final Answer

The names and empirical formulas of the ionic compounds are: a) SrO - strontium oxide b) Sr₂N₃ - strontium nitride c) SrS - strontium sulfide d) Sr₃P₂ - strontium phosphide