Standard Enthalpy of Formation

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Questions (9)

Use standard enthalpies of formation to determine ΔHorxnfor:3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g) -133.5 = Delta H Find the
1. 4 answers
2. asked by Steve
3. 3,862 views
Use standard enthalpies of formation to determine ΔHorxn for:2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) Enter in kJ.
1. 3 answers
2. asked by jESS
3. 1,088 views
A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ :Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) +
1. 2 answers
2. asked by Austin
3. 955 views
A scientist measures the standard enthalpy change for the following reaction to be -53.4 kJ :Ca(OH)2(aq) + 2 HCl(aq) CaCl2(s) +
1. 2 answers
2. asked by Austin
3. 875 views
1.) For which of the following substances is the standard enthalpy of formation equal to zero?a) water [H2O(l)] d) carbon
1. 2 answers
2. asked by tt
3. 830 views
these are my three thermochemical equations2Cu(s)+S(s) give Cu_2S(s) delta H -79.5 KJ S(s)+O_2 give SO_2(g) -297 KJ
1. 4 answers
2. asked by mohd
3. 785 views
Can someone check my answers please?I had specific trouble with 7, 13, and 27 (I'm pretty sure my other answers are correct;
1. 1 answer
2. asked by a Canadian
3. 630 views
If the standard state of sufur is S8 (s), which of the following equations represents the standard enthalpy of formation of
1. 1 answer
2. asked by Hannah
3. 612 views
Calculate the DHof for the following reaction under standard state conditions:2 Ag2S(s) + 2 H2O(l) ---> 4 Ag(s) + 2 H2S(g) +
1. 1 answer
2. asked by peterson
3. 502 views