Two crystalline samples are compared: • 24.8 g MgSO₄·7H₂O(s) (molar mass 246 g mol⁻¹)…

CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance

Problem

Two crystalline samples are compared: • 24.8 g MgSO₄·7H₂O(s) (molar mass 246 g mol⁻¹) • 12.0 g anhydrous MgSO₄(s) (molar mass 120 g mol⁻¹) Which sample contains the larger number of formula units?

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