Determine the enthalpy of reaction for HCI(g) + NaNO2(s) → HNO2(1) + NaCI(s) 2NACI(s) + H2O(1) → 2HCI(g) + Na,0(s) AH° = -507.1 kJ/mol NO(g) + NO2(g) + Na,0(s) → 2NANO2(s) AH° = -427.0 kJ/mol NO(g) + NO2(g) → N20(g) + O,(g) AH° = -43.01 kJ/mol 2HNO2(1) → N20(g) + O2(g) + H20(I) AH° = +34.02 kJ/mol %3D %3D %3D

Calculate the enthalpy of reaction for the following reaction: Fe₂O3(s) + 3CO(g) → 2Fe(s) + 3CO₂(g) AH,(Fe₂O3(s)) = -824.2 kJ/mol AH(CO(g)) = -110.5 AH,(Fe(s)) = ? AH(CO₂(g)) = -393.5 kJ/mol Answer: How much energy in kJ is required to heat a calorimeter whose heat capacity is 113.4 J/°C from 23.5°C to 55.0°C?

Calculate the enthalpy change for the reaction C2H2(g) + 2H2(g) → C2H6(g)     ΔrH = ? from the following information: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)    ΔrH = –2320 kJ/mol2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)    ΔrH = –3040 kJ/mol2H2(g) + O2(g) → 2H2O(g)                         ΔrH = –572 kJ/mol

A chemist measures the enthalpy change AH during the following reaction: 2 Al(OH),(s)-Al,0,(s) + 3H,0(1) AH=41. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction ΔΗ 3AI,0,(s) + 9H,0() 6Al(OH),(s) Al,0,(s) + 3H,0() 2Al (OH), (s) Al(OH),(6) - Al,0,(0) + ,00 1 Al,0,(5) + H,0() O kJ Explanation Check 2021 McGra M B

Which of the reactions are exothermic?

（1）Consider the reaction: 2A (g) + 3 B (g) → 2 C (g)     ΔHrxn = +254.3 kJ What will be the enthalpy change (in kJ) if 0.471 mol B reacts in excess A?   （2）Consider the reaction: C (s) + O2 (g) → CO2 (g)     ΔHrxn = -393.5 kJ What mass of carbon (in g) must be reacted via this mechanism to release 581.2 kJ of heat?

Determine the enthalpy of reaction for HCI(g) + NANO,(s) → HNO,(1) + NaCI(s) 2NACI(s) + H,O(1) → 2HCI(g) + Na O(s) AH° = -507.1 kJ/mol NO(g) + NO,(g) + Na¸O(s) → 2NAÑO,(s) AH° = -427.0 kJ/mol NO(g) + NO,(g) → NO(g) + 0,(g) AH° = -43.01 kJ/mol 2HNO (1) → NO(g) + 0,(g) + H,O(1) AH° = +34.02 kJ/mol