Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)...
sodium carbonate can be made by heating sodiumbicarbonate: 2NaHCO3(s) --> Na2CO3(s) +CO2(g) + H2O(g) Given that ΔHo = 128.9 kJ/mol andΔGo = 33.1 kJ/mol at 25oC, above whatminimum temperature will the reaction become spontaneous understandard state conditions? I know the answer is 401 K but I don't know how to get theanswer. If you could please show me step by step I will ratelifesaver.
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:
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...
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
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:...
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) +...
2NaHCO(s) Na CO,(s) o,(8)+H,0(B) + 6. Sodium carbonate can be made by heating sodium bicarbonate: a. Calculate ? using the standard enthalpies of formation. b. Predict the sign of AS®. Calculate AS using the standard entropies. Are your re Calculate AS using the standard entropies. Are your results consistent with your prediction? Support your answer with a 1 sentence explanation. C. d. Calculate AGo using the standard free energies of formation Will the reaction be spontar e. At what temperatures...
8. Sodium carbonate reacts with hydrobromic acid as follows: Na2CO3(aq) + 2 HBr(aq) -H2O(l) + CO2(g) +2 NaBr(aq) a. (10 points) Write complete ionic and net ionic equations for the reaction above. b. (8 points) Based on the equation above, what volume of carbon dioxide, measured at 815 torr and 455 K, is produced from the complete reaction of 115 mL of 1.25 M hydrobromic acid? Assume excess sodium carbonate.
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.
Solid sodium hydrogen carbonate, NaHCO3, decomposes on heating according to the equation: 2 NaHCO3(s) <--> Na2CO3(s) + H2O(g) + CO2(g) A sample of 1.00 x 102 grams of solid NaHCO3 was placed in a previously evacuated rigid 5.00-liter container and heated to 160 0C. Some of the original solid remained and the total pressure in the container was 7.76 atmospheres when equilibrium was reached. Calculate the number of moles of H2O(g) present at equilibrium. How many grams of the...