Concept explainers
The chemical formula of the inter-metallic compound.
Answer to Problem 34AAP
The chemical formula of the inter-metallic compound is
Explanation of Solution
Write the expression to calculate number of gram-moles of manganese
Here, molar mass of manganese is
Write the expression to calculate number of gram-moles of aluminum
Here, molar mass of aluminum is
Write the expression to calculate total number of gram-moles of compound
Write the expression to calculate gram-mole fraction of manganese
Write the expression to calculate gram-mole fraction of aluminum
Conclusion:
It is given that the inter-metallic compound has
The molar masses of manganese and aluminum are
Substitute
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The general expression for chemical formula of inter-metallic compound of magnesium and aluminium.
The gram-mole fractions of manganese and aluminum present in the compound are 0.17 and 0.83 respectively.
Then, the chemical formula of the inter-metallic compound is,
To make the mole fractions into whole number, multiply the
Thus, the chemical formula of the inter-metallic compound is
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Chapter 2 Solutions
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