1- When barium hydroxide , Ba ( OH ) 2 , reacts with ammonium chloride , NH4CI , a highly endothermic reaction takes place . Ba ( OH ) , ( aq ) + NH , Cl ( s ) → BaCl , ( aq ) +2 H , O ( l ) + 2NH ( g ) AH = 90.7 kJ How many moles of barium hydroxide , are needed to absorb 52.2 kJ of heat from the environment from the equation above ?
2- The reactions of nitrogen oxides are important in the environment and in industrial processes . Calculate the heat transferred , in kJ , when 243 g of NO gas reacts with excess oxygen to form solid dinitrogen pentoxide . 4 NO ( g ) + O₂ ( g ) → 2 N₂O5 ( s ) AH = -219 kJ
3- How many kilojoules of heat would be required to fully melt a 0.834 m³ block of ice , provided that the density of ice is 917 kg / m³ ? H₂O ( s ) → H₂O ( 1 ) AH = 6.01 kJ
- 1 When Barium Hydroxide Ba Oh 2 Reacts With Ammonium Chloride Nh4ci A Highly Endothermic Reaction Takes Pla 1 (89.01 KiB) Viewed 66 times
- 1 When Barium Hydroxide Ba Oh 2 Reacts With Ammonium Chloride Nh4ci A Highly Endothermic Reaction Takes Pla 2 (50.76 KiB) Viewed 66 times
When barium hydroxide, Ba(OH)2, reacts with ammonium chloride, NH4Cl, a highly endothermic reaction takes place. Ba(OH), (aq)+NHẠCl(s) — BaCl, (aq)+2 H,O (l)+2NH3 (g) AH = 90.7 kJ How many moles of barium hydroxide, are needed to absorb 52.2 kJ of heat from the environment from the equation above?
Question 20 1 pts The reactions of nitrogen oxides are important in the environment and in industrial processes. Calculate the heat transferred, in kJ, when 243 g of NO gas reacts with excess oxygen to form solid dinitrogen pentoxide. 4 NO(g) + O₂ (g) 2 N₂O5 (8) AH = -219 kJ
Question 21 1 pts How many kilojoules of heat would be required to fully melt a 0.834 m³ block of ice, provided that the density of ice is 917 kg/m³? H₂O (s)→ H₂O (1) AH = 6.01 kJ