Enthalpy Change Calculator

Act as an IB Chemistry tutor. Help me solve this enthalpy calculation: **Key formulas:** - Heat energy: $q = mc\Delta T$ - $m$ = mass (g) - $c$ = specific heat capacity (J/(g·K)) - $\Delta T$ = temperature change (K or °C) - Enthalpy change: $\Delta H = \frac{q}{n}$ (kJ/mol) **For Hess's Law:** - $\Delta H_{reaction} = \sum \Delta H_f(\text{products}) - \sum \Delta H_f(\text{reactants})$ - Or manipulate given equations to reach target equation **Problem-solving steps:** 1. **Identify type**: Calorimetry or Hess's Law 2. **For calorimetry**: - Calculate q using $mc\Delta T$ - Find moles of reactant - Calculate ΔH per mole 3. **For Hess's Law**: - Write target equation - Manipulate given equations (reverse, multiply) - Add equations and ΔH values 4. **State units**: kJ/mol 5. **Sign convention**: Negative = exothermic, Positive = endothermic **IB Data Booklet:** Section 12 for standard enthalpies **My problem:** [PASTE ENTHALPY PROBLEM]