Subjects

Sections | |||
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Internal Energy | 22 mins | 0 completed | Learn |

Calorimetry | 39 mins | 0 completed | Learn |

Thermochemical Equation | 6 mins | 0 completed | Learn Summary |

Hess's Law | 17 mins | 0 completed | Learn |

Enthalpy of Formation | 13 mins | 0 completed | Learn Summary |

End of Chapter 6 Problems | 52 mins | 0 completed | Learn |

Additional Practice |
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Units of Energy |

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Endothermic & Exothermic Reactions |

Enthalpy |

Solution: Using data from the following reactions and applying Hess's law, calculate the heat change for the slow reaction of zinc with water: Zn (s) + 2H2O (l) → Zn2+ (aq) + 2OH- (aq) + H2 (g) ΔH°rxn = ? H+

Using data from the following reactions and applying Hess's law, calculate the heat change for the slow reaction of zinc with water:

Zn (s) + 2H_{2}O (l) → Zn^{2+} (aq) + 2OH^{-} (aq) + H_{2} (g) ΔH°_{rxn} = ?

H^{+} (aq) + OH^{-} (aq) → H_{2}O (l) ΔH°_{rxn}, _{1} = -56 kJ/mol H_{2}O

Zn (s) → Zn^{2+} (aq) ΔH°_{rxn}, _{2} = -153.9 kJ

1/2 H_{2} (g) → H^{+} (aq) ΔH°_{rxn}, _{3} = 0.0 kJ

Calculate the enthalpy of the following reaction:

Using Hess’s Law, determine the ΔH of the followin...

Use the standard reaction enthalpies given below t...

Given the chemical reactions:
2 NO2(g) → N2(g) + ...

The values for the enthalpy of reaction are given ...

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CS2 (l) + 3O2(g) → CO...

Given the following reactions
Fe2O3 (s) + 3CO (s)...

Given the following reactions
N2 (g) + 2O2 (g) → ...

Calculate ΔH° (in kJ) for the reaction.
2S (s) + ...

S(s) + O2(g) → SO2 (g) ∆H = ‐296.8 kJ
2SO2 +...

The United States gets 95% of its hydrogen gas by ...

Researchers at Purdue University have exploited th...

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Use the following equations
C (s) + O2 (g) → CO2 ...

Determine the answer for the question below.

Enthalpy diagram illustrating Hesss law. The ne...

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From the enthalpies of reactionH2 (g) + F2 (g) → 2...

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Diamond and graphite are two crystalline forms of ...

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A+2B→C+3...

Calculate the ΔHrnx for the following reaction CH4...

Consider the following set of reactions:
N2 + 2O2...

Given these reactions:
X(s) +1/2 O2(g) → XO(s)
H...

Now consider the following set of reactions:
Reac...

Calculate ΔHrxn for the following reaction
2 NOCl...

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Calculate the standard molar enthalpy of formation...

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Given the following dataFe2O3 (s) + 3 CO (g) → 2 F...

For each generic reaction, determine the value of ...

For each generic reaction, determine the value of ...

For each generic reaction, determine the value of ...

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Calculate ΔH for the reaction N2H4 (l) + O2 (g) → ...

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Write the balanced overall equation (equation 3) f...

Write the balanced overall equation (equation 3) f...

At a given set of conditions, 241.8 kJ of heat is ...

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Calculate ΔHrxn Delta H_{
m rxn} for the followin...

The ΔHf˚ of TiI3(s) is –328 kJ/mol and the ΔH˚ for...

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Consider these reactions, where M represents a gen...

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Using the following data, calculate the standard h...

The following sequence of reactions occurs in the ...

Calculate ΔHrxn for the reaction CaO(s) + CO2(g) →...

Use the standard reaction enthalpies given below t...

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A chemist measures the enthalpy change ΔH during t...

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Given the following reactions:(1) 2NO --> N2 + ...

Consider these reactions, where M represents a gen...

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Find ΔH° for BaCO3 (s) → BaO (s) + CO2 (g) given t...Enter your answer in the provided box.From these d...

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The combustion reaction of butane is as follows. C...

Given the following data: N2(g) + O2(g) → 2NO(g), ...Enter your answer in the provided box.You are give...Given the following data (1) 2ClF (g) + O2 (g) → C...Consider the following chemical reaction. NH3(g) +...Consider the following hypothetical reactions:A → ...The enthalpy of decomposition of NO2Cl is -114 kJ....

Use the following data to calculate the standard h...

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