02:12CHEMISTRY 101: Standard Enthalpy of reaction from Standard Enthalpies of FormationMatthew Gerner945views
05:55How to Calculate Enthalpy of Reaction using Heat of Formation Examples, Practice Problems, ExplainedConquer Chemistry961views
Multiple ChoiceWhich of the following represents the formation equation for barium nitrate, Ba(NO3)2?581views3rank
Multiple ChoiceIbuprofen is used as an anti-inflammatory agent used to deal with pain and bring down fevers. If it has a molecular formula of C13H18O2, determine the balanced chemical equation that would give you directly the enthalpy of formation for ibuprofen. 569views4rank
Textbook Question(a) Why does the standard enthalpy of formation of both the very reactive fluorine 1F22 and the almost inert gas nitrogen 1N22 both read zero?541views
Textbook QuestionFor each of the following compounds, write a balanced thermochemical equation depicting the formation of one mole of the compound from its elements in their standard states and then look up H °f for each substance in Appendix C. (b) SO3(g)1040views
Textbook QuestionWrite balanced equations that describe the formation of the following compounds from elements in their standard states, and then look up the standard enthalpy of formation for each substance in Appendix C: (a) CH3OH(l)998views1rank
Textbook QuestionWrite an equation for the formation of each compound from its elements in their standard states, and find ΔH °f for each in Appendix IIB. a. NH3( g)844views
Textbook QuestionWrite an equation for the formation of each compound from its elements in their standard states, and find ΔH °rxn for each in Appendix IIB. d. CH3OH(l )426views
Textbook QuestionWrite an equation for the formation of each compound from its elements in their standard states, and find ΔH °rxn for each in Appendix IIB. b. MgCO3(s)1889views
Textbook QuestionHow is the standard state of an element defined? Why do elements always have ∆H°f = 0?883views
Textbook QuestionWhat phase of matter is associated with the standard states of the following elements and compounds? (a) Cl2 (b) Hg (c) CO2 (d) Ga483views
Textbook QuestionWhat is the phase of the standard states of the following ele- ments and compounds? (a) NH3 (b) Fe (c) N2 (d) Br2379views
Textbook QuestionWrite balanced equations for the formation of the following compounds from their elements. (b) Sucrose (table sugar, C12H22O11)612views
Textbook QuestionWrite balanced equations for the formation of the following compounds from their elements. (a) Iron(III) oxide697views
Textbook QuestionWrite balanced equations for the formation of the following compounds from their elements. (c) Dichloromethane (a liquid, CH2Cl2)528views
Textbook QuestionWrite balanced equations for the formation of the following compounds from their elements. (b) Sodium sulfate335views
Textbook QuestionWrite balanced equations for the formation of the following compounds from their elements. (a) Ethanol (C2H6O)371views
Open QuestionHow many kilojoules of heat will be released when exactly 1 mole of manganese, Mn, is burned to form Mn3O4(s) at standard state conditions?160views
Open QuestionWrite a balanced chemical equation depicting the formation of one mole of CaCO3(s) from its elements in their standard states.181views
Open QuestionUsing Hess's law, calculate the heat of formation for Cao(s) using the following reaction.214views