Show calculations to support your choice. Ammonia gas and carbon dioxide gas react to form aqueous urea {eq}(NH_2CoNH_2) {/eq} and water. (1142g carbon dioxide) x (1/44.01) x (1/1)= 25.94. a.Write a balanced chemical equation. Ammonia reacts with water in a reversible reaction to produce ammonium (NH 4 +) and hydroxide (OH-) ions, as shown in equation . Urea (NH 2 ) 2 CO is prepared by reacting ammonia with carbon dioxide. Only when the soil contains ammonium is the plant able to take up the nitrogen nutrient. If urease is added to any compound which has no urea, it will not catalyze any reaction because if there is no urea, urease will not bind to any substance. What is balanced equation when Ammonia and carbon dioxide react to form urea and water? (2) - ammonium bicarbonate decomposes into carbon dioxide (#CO_2#), water, and ammonia; (3) - the decomposition of ammonium carbonate - total reaction; Both reaction are endothermic - heat must be supplied in order for the reaction to take place. Ammonia is highly soluble in water, although solubility decreases rapidly with increased temperature. If 5.00 grams of ammonia react with excess carbon dioxide, how many grams of urea would be produced? CO2 + H2 The remaining traces of CO and CO 2 are converted to methane and then the gases cooled Answer. To find the theoretical yield, convert according to the mole ratio of the limiting reactant (ammonia… * 2 NH3 + CO2 ===> NH2-CO- NH2 + H2O * Number of moles of Ammonia present on 72- Litres at room temperature= * n= PV/RT= 1 x 72/(0.0821 x 298) * [Room - Temperature= 25°C= 298K] * n = 2.94-moles. The operating temperature is 135 o C and 35 atm pressure, the chemical reaction is endothermic reaction and so ammonia is maintained in excess to shift the equilibrium towards urea formation. The carbon monoxide is converted to carbon dioxide for use in urea production, and the carbon dioxide removed: CO + H2O ! b.Determine which of the two reactants (ammonia or carbon dioxide) is a limiting reactant. This is a two step process where the ammonia and carbon dioxide react to form ammonium carbamate which is then dehydrated to urea. The byproduct is water. c. Wiki User ... Ammonia + Carbon dioxide --> Urea + Water. Urea production is based on two main reactions. Both ammonia and carbon dioxide are gases, and both will float off into the atmosphere – ammonia volatilization – unless the ammonia (NH3) reacts with more water to form ammonium (NH4 +). Water, carbon monoxide and carbon dioxide (all of which poison the iron catalyst used in the ammonia synthesis) are removed. 19 20 21. 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