24. 254g of sodium bicarbonate (baking soda) is placed in a 1L container, evacuated, and heated...
24. 254g of sodium bicarbonate (baking soda) is placed in a 1L container, evacuated, and heated to 100o C. After the equilibrium 2NaHCO3(s) ⇄ Na2CO3(s) + H2O(g) + CO2(g) has been established the total pressure is 7.2 Atm. What is Kp? a) 0.81 b) 13.0 c) 4.81 d) 51.8 e) 468
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24. 254g of sodium bicarbonate (baking soda) is placed in a 1L
container, evacuated, and heated...
Sodium bicarbonate (NaHCO3) is called baking soda because when heated, it releases carbon dioxide gas, which...
Sodium bicarbonate (NaHCO3) is called baking soda because when heated, it releases carbon dioxide gas, which is responsible for the rising of cookies, doughnuts, and bread. Calculate the volume (in liters) of CO2 produced by heating 8.37 g of NaHCO3 at 180°C and 1.12 atm.
14. A sample of solid NH4NO3 was placed in an evacuated container and then heated so...
14. A sample of solid NH4NO3 was placed in an evacuated container and then heated so that it decomposed explosively according to the following reaction: NH4NO3(s) = N2O(g) + 2H2O(g) At equilibrium, the total pressure in the container was found to be 2.03 atm at a temperature of 500°C. Calculate Kp. A) 33.5 B) 4.12 C) 1.83 D) 1.24 E) 2.03
3. Some commercial baking powders contain a mixture of sodium bicarbonate (baking soda) and calcium dihydrogen...
3. Some commercial baking powders contain a mixture of sodium bicarbonate (baking soda) and calcium dihydrogen phosphate. When the powder is moistened, carbon dioxide s is liberated and makes the batter or dough rise. Balance the equation for the following reaction. NaHCO Ca(H2PO4)2 ),-. Na2HPO4 + CaHPO4 + CO2 + H2O
12 A baker uses sodium hydrogen carbonate (baking soda) as the leavening agent in a banana-nut quickbread. The baking soda decomposes according to two possible reactions. Reaction 1: 2 NaHCO3(s)-Na2C...
12
A baker uses sodium hydrogen carbonate (baking soda) as the leavening agent in a banana-nut quickbread. The baking soda decomposes according to two possible reactions. Reaction 1: 2 NaHCO3(s)-Na2CO3(s) + Њ0() + CO2(g) Reaction 2: NaHCO3(s) H(a) H00) CO2(g) +Na (aq) Calculate the volume (in mL) of Co2 that forms at 220.°C and 0.995 atm per gram of NaHCO3 by each of the reaction processes mL (Reaction 1) mL (Reaction 2)
A baker uses sodium hydrogen carbonate (baking soda)...
14. Baking soda (NaHCO3) can be decomposed when heated, as shown. 2 NaHCO3 (s) - Na2CO3...
14. Baking soda (NaHCO3) can be decomposed when heated, as shown. 2 NaHCO3 (s) - Na2CO3 (s) + CO2(g) + H2O (9) Use heats of formation to determine the value of AH for this reaction. (8 points)
14.8 Thermal decomposition of sodium bicarbonate is given by the following re- action: 2NAHCO3 (s) Na2CO3...
14.8 Thermal decomposition of sodium bicarbonate is given by the following re- action: 2NAHCO3 (s) Na2CO3 (s) +H2O (g) +CO2 (g) The equilibrium constant for this reaction is given by 15, 381 In Ka=39.81 - T where T is in K, An evacuated rigid tank having a volume of 5 m3 and con- taining 250 kg of sodium bicarbonate is maintained at 400 K. Calculate the amount of NaHCO3 remaining in the tank when the system reaches equilib- rium. (Answer:...
Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)...
Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g) Given that ΔH° = 128.9 kJ and ΔG° = 33.1 kJ at25°C, above what minimum temperature will the reaction becomespontaneous under standard state conditions?
2. (3 points) When gently heated sodium bicarbonate decomposes into sodium oxide, carbon dioxide, and water...
2. (3 points) When gently heated sodium bicarbonate decomposes into sodium oxide, carbon dioxide, and water according to the reaction below: Na2O (s)+ 2CO2 (g) +H2O () 2NAHCO3 (s) Determine work for this process at 30°C.
5. Sodium bicarbonate (baking soda) will neutralize sulfuric acid according to the following reaction: 2 H200)...
5. Sodium bicarbonate (baking soda) will neutralize sulfuric acid according to the following reaction: 2 H200) + 2 CO2()+ Na2SOs(aq) 2 NAHCO3(aq)+H2SO4(aq) If a student spills 250.0 mL of sulfuric acid, how many grams of sodium bicarbonate should they use in order to completely neutralize it? Assume the density of sulfuric acid is 1.84 g/m L.
A recipe for scones asks for 1.80 g of baking soda (sodium hydrogen carbonate). Upon heating...
A recipe for scones asks for 1.80 g of baking soda (sodium hydrogen carbonate). Upon heating at 180 °C at a pressure of 1.00 bar, baking soda decomposes as follows: 2 NaHCO3(s) + CO2(g) + Na2CO3(s) + H20(1) If the volume of the dough before baking (i.e. before the decomposition reaction takes place) is 668 ml, what will be the total volume of the scones after baking, in mL? Assume that the rising of the dough is only caused by...
14. A sample of solid NH4NO3 was placed in an evacuated container and then heated so that it decomposed explosively according to the following reaction: NH4NO3(s) = N2O(g) + 2H2O(g) At equilibrium, the total pressure in the container was found to be 2.03 atm at a temperature of 500°C. Calculate Kp. A) 33.5 B) 4.12 C) 1.83 D) 1.24 E) 2.03
3. Some commercial baking powders contain a mixture of sodium bicarbonate (baking soda) and calcium dihydrogen phosphate. When the powder is moistened, carbon dioxide s is liberated and makes the batter or dough rise. Balance the equation for the following reaction. NaHCO Ca(H2PO4)2 ),-. Na2HPO4 + CaHPO4 + CO2 + H2O
12
A baker uses sodium hydrogen carbonate (baking soda) as the leavening agent in a banana-nut quickbread. The baking soda decomposes according to two possible reactions. Reaction 1: 2 NaHCO3(s)-Na2CO3(s) + Њ0() + CO2(g) Reaction 2: NaHCO3(s) H(a) H00) CO2(g) +Na (aq) Calculate the volume (in mL) of Co2 that forms at 220.°C and 0.995 atm per gram of NaHCO3 by each of the reaction processes mL (Reaction 1) mL (Reaction 2)
A baker uses sodium hydrogen carbonate (baking soda)...
14. Baking soda (NaHCO3) can be decomposed when heated, as shown. 2 NaHCO3 (s) - Na2CO3 (s) + CO2(g) + H2O (9) Use heats of formation to determine the value of AH for this reaction. (8 points)
14.8 Thermal decomposition of sodium bicarbonate is given by the following re- action: 2NAHCO3 (s) Na2CO3 (s) +H2O (g) +CO2 (g) The equilibrium constant for this reaction is given by 15, 381 In Ka=39.81 - T where T is in K, An evacuated rigid tank having a volume of 5 m3 and con- taining 250 kg of sodium bicarbonate is maintained at 400 K. Calculate the amount of NaHCO3 remaining in the tank when the system reaches equilib- rium. (Answer:...
2. (3 points) When gently heated sodium bicarbonate decomposes into sodium oxide, carbon dioxide, and water according to the reaction below: Na2O (s)+ 2CO2 (g) +H2O () 2NAHCO3 (s) Determine work for this process at 30°C.
5. Sodium bicarbonate (baking soda) will neutralize sulfuric acid according to the following reaction: 2 H200) + 2 CO2()+ Na2SOs(aq) 2 NAHCO3(aq)+H2SO4(aq) If a student spills 250.0 mL of sulfuric acid, how many grams of sodium bicarbonate should they use in order to completely neutralize it? Assume the density of sulfuric acid is 1.84 g/m L.
A recipe for scones asks for 1.80 g of baking soda (sodium hydrogen carbonate). Upon heating at 180 °C at a pressure of 1.00 bar, baking soda decomposes as follows: 2 NaHCO3(s) + CO2(g) + Na2CO3(s) + H20(1) If the volume of the dough before baking (i.e. before the decomposition reaction takes place) is 668 ml, what will be the total volume of the scones after baking, in mL? Assume that the rising of the dough is only caused by...
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