Question 17 of 20 Using the equations 2 Sr(s) + O2 (g) → 2 Sro (s)...
Using the equations 2Sr(s)+O2(g) → 2 SrO (s) ΔH° = -1184 kJ/mol SrO (s) +CO2 (g) → SrCO3 (s) ΔH° = -234 kJ/mol CO2 (g) → C(s) +O2 (g) ΔH°= 394 kJ/mol Determine the enthalpy for the reaction 2 SrCO3 (s) → 2 Sr (s)+2 C(s)+ 3O2 (g). kJ/mol
Determine the enthalpy change for C(graphite) + O2(g) → CO2(g); AH= ? using the following three thermochemical equations, which will be referred to as reactions (A), (B), and (C). (A) Sro(s) + CO2(g) → SCO3(s);AH = -234 kJ (B) 2Sro(s) → 25r(s) + O2(g); AH= 1184 kJ (C) 2SrCO3(s) — 25r(s) + 2C(graphite) + 302(g); AH= 2440 kJ The value for AH = List what action you performed on each equation to achieve your goal. Equation (A) was Equation (B)...
Question 8 of 20 Using the equations H2(g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol C(s) + 2 F2 (g) → CF. (g) AH° = 141.3 kJ/mol 2 C(s) + 2 H2 (9) C2H4 (9) AH = -97.6 kJ/mol Determine the enthalpy for the reaction C2H4 (g) + 6 F2 (g) → 2 CF4 (9) + 4 HF (g). kJ/mol
1) Find the AH of the following reaction: C(s) + O2(g) à CO2(g) Given the following data: Sro(s) + CO2(g) à SrCO3(s) 2Sro(s) à 2Sr(s) +0,(8) AH = -234 kJ AH = +1184 kJ 2SCO,(s) à 25r(s) + 2C(s) + 302(g) AH = +2440 kJ 2) Find the AH of the following reaction: 3NO,(g) + H2O(l) à 2HNO,(aq) + NO(g) Given the following data: 2NO(g) + O2(g) à 2NO(g) AH=-116 kJ 2N2(g) + 502(g) + 2H2O(l) à 4HNO3(aq) AH =...
The following reaction releases 1184.0 kJ of heat: 2 Sr (s) + O2 (g) ⟶ 2 SrO (s) What is the heat absorbed/released when 50.0 g of strontium reacts with excess molecular oxygen?
1. A 20.0-8 piece of aluminum at 0.0°C is dropped into a beaker containing 100.0 g of water. The temperature of the water drops from 90.0°C to 85.7°C. What quantity of energy did the aluminum absorb? What is the specific heat of the aluminum? 2. If 55.0 ml of water at 22.5°C is mixed with 100.0 ml of water at 95.2 'C, what would you expect for a final temperature? 3. Cold packs (the kind that get cold when you...
Using the equations below: C(s) + O2(g) → CO2(g) AH = -390 KJ Mn(s) + O2(g) → MnO2(s) AH = -520 KJ What is the AH (in K)) for the following reaction? MnO2(s) + C(s) + Mn(s) + CO2(g) : AH = ? Hint: Use Hess's law O A. 910 KJ B. -130 KJ C. 130 KJ OD. -910 KJ
Based on the following equations: 2 CO2(g) + O2(g) + 2 CO (g) AH- +566.0kJ 2(graphite) + O2(g) + 2 CO (5) AH = -221.0 kJ Determine the enthalpy change (AH) for the following reaction: C(graphite) + O2 (8) CO2(g)
Using Hess's Law, determine the enthalpy change of the following reaction. CS2(1) + 3 O2(g) --> CO2(g) + 2 SO2(g) C(s) + O2(g) --> CO2(g) AH = -393.5 kJ/mol S(s) + O2(g) --> SO2(g) AH = -296.8 kJ/mol C(s) + 25(s) --> CS2(8) AH = +87.9 kJ/mol -899.2 kJ O-778.2 kJ -602.4 kJ - 1075.0 kJ
16. Use the thermochemical equations below to determine the enthalpy change for the following reaction (10 pts.): C(s) + O2(g) → CO2 (g) AH = -234 kJ sko (s) + CO2 (g) → SCO: (s) AH = +1184 kJ 2S60 (s) → 25r (s) + O2 (g) AH = +2440 kJ 2STCO3 (s) + 2Sr (s) + 2C (s) + 302 (9)