c. How much heat is released when iting reacts to 4.59 grams of oxygen? AS da...
9 Alst 302 (9) 2Al2O315) DH = -3.3565 c. How much heat is released when iting reacts to 4.57 grams of oxygen?
. Use the equation below to calculate how much heat (in kJ) is evolved when 5.0 g of aluminium reacts with a stoichiometric amount of Fe2O3? 2 Al (s) + Fe2O3 (s) —>2 Fe (s) + Al2O3 (s) AH° = -852 kJ Determine the AHPrxn for the following reaction. {AH® (NH3) = -45.9 kJ/mol; AH°(O2) = 0; AH® (NO) = +91.3 kJ/mol; AH° (H2O) = -241.8 kJ/mol; 4 NH3 (g) + 5 O2 (g) — 4 NO (g) + 6...
3.103 When a mixture of 10.0 g acetylene (C, H,) and 10.0 g
oxygen (O2) is burned, the resulting combustion reaction produces
CO2 and H2O. a) Write the balanced chemical equation for this
reaction. b) What is the limiting reagent? c) How many grams of
C2H2, O2, CO2 and H, O are present after the reaction is
complete?
3.103 Cuando se quema una mezcla de 10.0 g de acetileno (CH) y 10.0 g oxígeno (O2), la reacción de combustión resultante...
13. The thermal decomposition of aluminum oxide can be represented as follows: A1203 (s) 2 Al (s) +3/2 O2 (g) AHran 1676 KJ If aluminum is produced in this way, how many grams of aluminum Could they be formed when 1,000 x 103 KJ of heat is transferred? 13. La descomposición termal del óxido de aluminio se puede representar de la siguiente forma AlLO (s)2 Al (s)+3/2 O:(g) AHn 1676 K Si el aluminio se produce de esta forma, cuántos...
Calculate the amount of heat released in the combustion of 9 grams of Al with 2.5 grams of O2 to form Al2O3(s) at 25°C and 1 atm. ? HfAl2O3(s) = ? 1676 kJ/mol HINT: What does Delta ? HfAl2O3(s) mean? Enter a positive number since released implies a negative number already. Enter to 1 decimal place in kJ.
Calculate the amount of heat released in the combustion of 10.9 grams of Al with 3.5 grams of O2 to form Al2O3(s) at 25°C and 1 atm. ΔHfAl2O3(s) = −1676 kJ/mol HINT: What does ΔHfAl2O3(s) mean? Enter a positive number since released implies a negative number already. Enter to 1 decimal place in kJ.
How much heat is absorbed/released when 20.00 g of NH3(g) reacts in the presence of excess O2 (g) to produce NO (g) and H2O (l) according to the following chemical equation? 4NH3 (g) + 5O2 (g) ---> 4NO (g) +6H2O (l) Δ H: +1168 kJ a. 342.9 kJ of heat are absorbed. b. 342.9 kJ of heat are released. c. 1372 kJ of heat are absorbed. d. 1372 kJ of heat are released. Please explain your answer.
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) AH = -1652 kJ (a) How much heat is released when 3.54 mol iron are reacted with excess O2? Ok] (b) How much heat is released when 1.48 mol Fe2O3 is produced? CJ) (c) How much heat is released when 2.50 g iron are reacted with excess O2? DJ (d) How much heat is released when 12.6 g Fe and 1.02 g O2 are reacted? CkJ
The enthalpy of formation of water is -241.8 kJ/mol. How much heat is released when 7g of hydrogen reacts with excess oxygen to form water?
When diamond oxidizes (burns), heat is released: C(s) diamond O2(g) - CO, (a): AH = 395.4 KJ/mol; If 15,400 Kj are released while burning diamond, how many grams of diamond are consumed. (5 points)