sodium carbonate can be made by heating sodiumbicarbonate: 2NaHCO3(s) --> Na2CO3(s) +CO2(g) + H2O(g) Given that...
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?
4 Look at the decomposition reaction for Marks: 2 sodium bicarbonate. 2NaHCO3(s) Na2CO3(s) + H2O(g) + CO2(g) Suppose that triangle H = 64.5 kJ/mol and triangleS = 0.167kJ/mol.K. Which statement about this reaction is correct? Assume that triangleH and triangleS are constant for all the given temperatures. Choose one answer a. The reaction is spontaneous at 327 K. b. The reaction is spontaneous at 380 K. c. The reaction is at equilibrium at about 386 K. d. The reaction is...
Sodium carbonate is used to manufacture glass. It is obtained by heating sodium bicarbonate as follows: 2 NaHCO3 (s) → Na2CO3 (s) + H2O (g) + CO2 (g) ΔH = +129.3 kJ This reaction is (endothermic/exothermic). How many grams of sodium carbonate are produced if 1252 kJ of heat are used to decompose the sodium bicarbonate? g Na2CO3 (4 SF) How much heat is required to decompose 15.65 grams of NaHCO3? kJ (4 SF) Blank 1: Blank 2: Blank 3:
1.Sodium hydrogen carbonate, NaHCO3, can be decomposed completely by heating. 2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g) A sample of impure NaHCO3 with an initial mass of 0.739 g yielded a solid residue (consisting of Na2CO3 and other solids) with a final mass of 0.564 g. Determine the mass percent of NaHCO3 in the sample. 2.In a process for producing acetic acid, oxygen gas is bubbled into acetaldehyde, CH3CHO, containing manganese(II) acetate (catalyst) under pressure at 60°C. 2CH3CHO(l) +...
A solution of HNO3HNO3 is standardized by reaction with pure sodium carbonate. 2H++Na2CO3⟶2Na++H2O+CO22H++Na2CO3⟶2Na++H2O+CO2 A volume of 25.76±0.05 mL25.76±0.05 mL of HNO3HNO3 solution was required for complete reaction with 0.9089±0.0007 g0.9089±0.0007 g of Na2CO3Na2CO3, (FM 105.988±0.001 g/mol105.988±0.001 g/mol). Find the molarity of the HNO3HNO3 solution and its absolute uncertainty. Note: Significant figures are graded for this problem. To avoid rounding errors, do not round your answers until the very end of your calculations.
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:...
Upon heating, sodium bicarbonate decomposes into sodium carbonate, carbon dioxide, and water vapor according to the following chemical reaction: 2 NaHCO3 (s) →→ Na2CO3 (s) + CO2 (g) + H2O (g) If the initial mass of sodium bicarbonate is 4.859 g, how much sodium carbonate should be produced? a. 3.066 g b. 2.211 g c. 6.131 g d. 4.859 g
A solution of HNO3 is standardized by reaction with pure sodium carbonate. 2H++Na2CO3⟶2Na++H2O+CO2 A volume of 28.52±0.05 mL of HNO3 solution was required for complete reaction with 0.8605±0.0008 g of Na2CO3 , (FM 105.988±0.001 g/mol ). Find the molarity of the HNO3 solution and its absolute uncertainty. Note: Significant figures are graded for this problem. To avoid rounding errors, do not round your answers until the very end of your calculations.
Upon heating, baking soda decomposes as follows, creating the holes in baked bread: 2NaHCO3(s) - NaCO3(s) + CO2(8) +H20(1) 1st attempt Jul See Periodic Table See HD When 40.0 g NaHCO3 decomposes, the change in energy is-30.8 kJ. Use this information and the additional information provided to calculate the AH, of NaHCO3. AH(kJ/mol) -286 Substance H2001 CO2(8) Na2CO3(s) -394 -1131 AH, of NaHCO3 kJ/mol 15 OF 23 QUESTIONS COMPLETED < 22/23 > SUOM
Sodium hydroxide reacts with carbon dioxide as follows: 2 NaOH(s) + CO2(g) → Na2CO3(s) + H2O(1) If 3.70 mol NaOH and 2.00 mol CO2 are allowed to react, how many moles of the excess reactant remains? O 1.00 mol CO2 0 1.70 NaOH O 0.30 mol NaOH O 0.15 mol CO2