QQuestionChemistry
QuestionChemistry
What is the molar mass of the ionic compound magnesium fluoride?
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Answer
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Step 1:
First, let's identify the atomic masses of magnesium and fluoride. The atomic mass of magnesium (Mg) is approximately 24.31 g/mol, and the atomic mass of fluoride (F) is approximately 18.99 g/mol.
Step 2:
Since magnesium fluoride is an ionic compound, it consists of Mg^2 + and F^- ions. The total mass of the ions in one mole of the compound is the sum of the atomic masses of the constituent atoms.
Step 3:
For magnesium fluoride (MgF2), the molar mass is calculated as: \begin{align*} \text{Molar mass of MgF}_2 &= \text{Molar mass of Mg} + 2 \times \text{Molar mass of F} \ &= 24.31 \text{ g/mol} + 2 \times 18.99 \text{ g/mol} \ &= 24.31 \text{ g/mol} + 37.98 \text{ g/mol} \ &= 62.29 \text{ g/mol} \end{align*}
Final Answer
The molar mass of magnesium fluoride (MgF2) is 62.29 g/mol.
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