6. A student makes measurements from which she calculates the enthalpy of neutralization as 58.5357 kJ mol¹. She estimates that her result is precise to ± 2%. Which of the following gives her result expressed to the appropriate number of significant figures? a. 58 kJ mol¹ b. 58.5 kJ mol₁ C. 58.54 kJ mol¹ d. 58.536 kJ mol¹

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