From the balanced equation,
2x84 g NaHCO3 absorbs 91.5 kj
X g NaHCO3 absorbs 256 KJ
X= 2x84x 256/91.5
X= 470 g NaHCO3
11. NaHCO, decomposes when exposed to heat: 2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(e) AH...
When NaHCO3 is heated above 270 °C, it decomposes to Na2CO3, H2O, and CO2. Write a balanced chemical equation for the decomposition reaction. Do not include phases.Calculate the mass of CO2 produced from the decomposition of 21.00 g of NaHCO3.
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)
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) +...
Possible Chemical Equations NaHCO3 (s) → NaOH (s) CO2(g) NaHCO3 (s) → Na2CO3(s) + CO2(g) + H2O(g) NaHCO3 (s) → Na2O(s) + CO2(g) + H2O(g) NaHCO3 (s) → Na(s) + H2(g) + C(s) + O2(g) Conclusions: 1. Rewrite and balance each of the four chemical equations from the lab introduction.
Possible Chemical Equations NaHCO3 (s) → NaOH (s) CO2(g) NaHCO3 (s) → Na2CO3(s) + CO2(g) + H2O(g) NaHCO3 (s) → Na2O(s) + CO2(g) + H2O(g) NaHCO3 (s) → Na(s) + H2(g) + C(s) + O2(g) Conclusions: 1. Rewrite and balance each of the four chemical equations from the lab introduction.
Which is the correct equilibrium constant expression for the following reaction? 2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) O A. Kc=[Na2CO3] / [NaHCO3)2 O B. Kc = [NaHCO3] 2 / [Na2CO3][ CO2][ H20] O C. Kc = [ CO2][ H20] OD. Kc = [Na2CO3][ CO2][ H20] / [NaHCO3)2
KClO3 (122.6 g mol^-1) decomposes when exposed to heat via the reaction 2KClO3(s)-->2KCl(s) + 3O2(g). What mass of KClO3 was decomposed is 140.0 mL of O2 (32.00 g mol^-1) was collected at STP?
Which of the following processes have a ΔS > 0? A) Na2CO3(s) + H2O(g) + CO2(g) → 2 NaHCO3(s) B)CH4(g) + H2O(g) → CO(g) + 3 H2(g) C)CH3OH(l) → CH3OH(s) D)N2(g) + 3 H2(g) → 2 NH3(g) E)All of the above processes have a DS > 0.
Sodium hydrogen carbonate, NaHCO3, can be decomposed completely by heating. 2 NaHCO3(s)- Na2CO;(s)+ CO2(g)+H20g A sample of impure NaHCO; with an initial mass of 0.890 g yielded a solid residue mass of 0.684 g. Determine the mass percent of NaHCOj in the sample. (consisting of Na CO3 and other solids) with a final
For the reaction shown, when is the reaction expected to be spontaneous? 2 NaHCO3(s) -> Na2CO3(s) + CO2(g) + H2O (g), ΔH°rxn = 128 kJ a. at high temperature only b. at low temperature only c. never d. at all temperatures Please explain answer.