Part F the energy needed to heat 12.6 και of silver from 112 °C to 275 °C IVE ΑΣΦΑ ? cal

Find delta S for the formation CH2CL2 (g) from its elements on their standard states.

If it takes 41.72 joules of heat for a piece of gold weighing 18.69 grams from 10.0oC to 27.0oC, what is the specific heat of the gold?

СH;ОН (1) + Оz (в) — СО2 (s) + H,0 (1) ΔΗ. ræn = -1418 kJ mol How many grams of CO2 were produced if the reaction released 967 kJof heat?

How much energy is required to break the bonds in the molecule of NO, BCl3, and NO2?  and How do I find the ΔH of the molecule from the elements in their standard states?

What is the average bond energy in CO2? CO2(g)          ΔH°f, = –393.5 kJ mol–1 CO(g)           ΔH°f, = –110.5 kJ mol–1 C(g)              ΔH°f, = +715 kJ mol–1        CO32–(aq)      ΔH°f, = –676.3 kJ mol–1 O(g)               ΔH°f, = +249.0 kJ mol–1   Question 5 options:   207 kJ mol–1   1607 kJ mol–1   804 kJ mol–1

and 2 Enthalpy #1.30 enoindice pled TT 2010 2D49.bs 22) When 1 mole of Fe2O3(s) reacts with H₂(g) to form Fe(s) and H2O(g) according to the following equation, 98.8 kJ of energy are absorbed. (6 Fe2O3(s) + 3 H2(g) → 2 Fe(s) + 3 H₂O(g) (pp) (20/d4 (pm) $40 D Reaclanis 13:48 SH Products endothermic, A endothermic, B (2) exothermic, A exothermic, B nad W (21 Enthalpy MOMS. Reactants Products (A) (B) Is the reaction endothermic or exothermic, and which of the enthalpy diagrams above represents grow olor and to noin (01 this reaction? SH GH TH A HOMH X HILD 08.10 Page 6 of 8

The lattice energy is defined as the energy required to break one mole of an ionic solid into its ions in the gas phase. The lattice energy for calcium oxide corresponds to the following reaction. CaO(s) Ca2+(g) + O2-(g) DH = ? Using the following information, determine the lattice energy for calcium oxide. Ca(s) ----> Ca(g) DH = 178.2 kJ Ca(g) ----> Ca2+(g) + 2e-   DH = 1747.9 kJ O2(g) ----> 2O(g) DH = 498.3 kJ O2-(g) ----> O(g) + 2e- DH = -702 kJ Ca(s) + 1⁄2 O2(g) ----> CaO(s)   DH = -635.0 kJ   Using the unrounded answer from the previous problem determine q (kJ) for the following reaction when 1.00 grams of solid calcium oxide forms.     Ca2+(g) + O2-(g) ⟶⟶ CaO(s)

When 6.54 grams of Zn is placed in 500.0 mL of 1.00 M CuSO4(aq) in a coffee cup calorimeter, it reacts completely to displace copper. The temperature of the solution rises from 20.0˚C to 30.4˚C. Assume the coffee cup itself gains no heat and that the solution has the same density (1.00 g/mL) and specific heat (4.184 J/g˚C) as pure water. (a) How much heat does the solution gain during this reaction? (in J)