Calculate ΔHrxn values for the following equations using standard enthalpies of formation (ΔHof) data. I need the problem to be solved in J/mol not kJ/mol CaCl2 (s) --> Ca2+(aq) + 2 Cl- (aq) NaHCO3 (s) --> Na+(aq) + HCO3- (aq)

Given the standard enthalpy changes for the following two reactions:(1) 4C(s) + 5H2(g) -> C4H10(g)...... ΔH° = -125.6 kJ(2) C2H2(g) -> 2C(s) + H2(g)......ΔH° = -226.7 kJwhat is the standard enthalpy change for the reaction:(3) 2C2H2(g) + 3H2(g) -> C4H10(g)......ΔH° = ?______ kJ

Use the References to access important values if needed for this question. Given the standard enthalpy changes for the following two reactions: (1) 2Fe(s) + O2(g)- →2F€O(s) AH° = -544.0 kJ (2) Fe(s) + Cl2(g)→FECI2(s) AH° = -341.8 kJ what is the standard enthalpy change for the reaction: (3) 2FECI2(s) + O2(g)2FEO(s)+ 2C12(g) AH° = ? kJ Submit Answer Retry Entire Group 9 more group attempts remaining

A student dissolves 11.4 g of sodium hydroxide (NaOH)in 200. g of water in a well-insulated open cup. She then observes the temperature of the water rise from 20.0 °C to 35.7 °C over the course of 3.7 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaOH (s) Na(aq) + OH (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to 3 significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. Calculate the reaction enthalpy ΔΗ per mole of NaOH. rxn exothermic…