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Exercise II. Urease Urea + H2O CO2 + Ammonia 10. What concentration of urease produced ammonia...
Urease is an enzyme which 'catalyses the breakdown of urea to ammonia and carbon dioxide. An experiment was carried out into the effect of pH on the activity of urease. 10 cm of pH 3 buffer solution was mixed with 1 cm3of urease solution. This mixture was then added to 10 cm3 of urea solution and the concentration of ammonia in the mixture was measured after 60 minutes. This procedure was repeated using buffer solutions of pH 4, 5, 6,...
3. (2 points) Urease is an enzyme produced by some bacteria that breaks down urea into ammonia. Humans produce urea in order to rid the body of waste nitrogen through urine. Ammonia is toxic to humans and can disrupt many of our cellular structures. Some pathogenic bacteria produce urease to break down urea into ammonia in our bodies and promote their infection. Look up urease on Wikipedia and name 3 diseases caused by bacterial infections where urease is important for...
Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the reaction: CO2(g) + 2 NH3(g) + CO(NH2)2() + H2O(g) A scientist has 75 g of dry ice to provide the carbon dioxide. If 4.10 L of ammonia at 14°C and a pressure of 1.7 atm is added, which reactant is limiting? Limiting reactant carbon dioxide What mass of remmonia Mass - 8
Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the reaction 2NH3(g)+CO2(g)?NH2CONH2(aq)+H2O(l) Given that ?G? = -13.6 kJ, calculate ?G at 25 ?C for the following sets of conditions. (Figure 1) Part A 40atm NH3, 40atm CO2, 3.0M NH2CONH2
Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the reaction 2NH3(g)+CO2(g)→NH2CONH2(aq)+H2O(l) Given that ΔG∘ = -13.6 kJ, calculate ΔG at 25 ∘C for the following sets of conditions. (Figure 1) 1) 20 atm NH3, 20 atm CO2, 4.0 M NH2CONH2 2) 9.0×10−2 atm NH3, 9.0×10−2 atm CO2, 1.0 M NH2CONH2 Is the reaction spontaneous for the conditions in part (a) and/or part (b)? spontaneous for the conditions in part (b), nonspontaneous for the conditions in part (a) nonspontaneous...
Consider the reaction 2 NH3(g) + CO2(g) →H2NCONH2(s) + H2O(g). If 93.5 kL of ammonia at STP is reacted with excess carbon dioxide, how many kilograms of urea will be formed? a. 124 kg b. 501 kg c. 1.05 ×103kg d. 6.29 ×104kg e. 2.52 ×105kg
What is the maximum concentration of ammonia that can be produced in this reaction? Justify your answer. 3H2+N2+2NH3 hydrogen concentration-0.35€ nitrogen concentration-0.750
2C2H2 +5O2 - 4 CO2 + H2O what volume of CO2 is produced at 225 degree C and 3.07 atm by the complete reaction of 32.8 g C2H2 and excess O2
Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the following reaction: 2NH3(g)+CO2(g)→NH2CONH2(aq)+H2O(l) Given that ΔG∘ = −13.6 kJ/mol, calculate ΔG at 25∘C for the following sets of conditions Part A 50 atm NH3, 50 atm CO2, 4.0 M NH2CONH2 Express the free energy in kilojoules per mole to two significant figures. Part B 8.0×10−2 atm NH3, 8.0×10−2 atm CO2, 1.0 M NH2CONH2 Express the free energy in kilojoules per mole to two significant figures. Part C Is the reaction spontaneous for the conditions in...
Carbamic acid, H2NCO(OH),is formed during the production of urea, CO(NH2)2, from carbon dioxide and ammonia. In carmabic acid, the carbon atom is attached only to the nitrogen atom and the two oxygen atoms. In urea, the carbon atom is attached only to the two nitrogen atoms and the oxygen atom. CO2 + NH3 → H2NCO(OH) H2NCO(OH) + NH3 → CO(NH2)2 + H2O (a) Draw the electron dot structure and use the VSEPR model to predict the molecular geometry about the...