IB skill practice

Determine empirical and molecular formulae

Paper 1, Paper 2 5 marks Difficulty 3

the correct interpretation

A compound in a sports drink dilution task has empirical formula mass \(18\,\text{g mol}^{-1}\) and molar mass \(36\,\text{g mol}^{-1}\). Calculate the multiplier from empirical formula to molecular formula. Use the diagram labels first, then answer carefully. Enter the answer and choose the interpretation that matches the chemistry.

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