Upon heating, CaCO3 decomposes to CaO and CO2. What change in the hybridisation of carbon occurs in this reaction?
Select one:
a. sp to sp2
b. sp2 to sp3
c. sp3 to sp
d. sp2 to sp
e. sp to sp3
f. None, it is sp2 in both.
Upon heating, CaCO3 decomposes to CaO and CO2. What change in the hybridisation of carbon occurs...
D Question 2 1 pts Calcium carbonate, CaCO3, decomposes upon heating to form CO2 gas according to the following balanced chemical equation. When a sample of CaCO3 was decomposed in a test tube, 650 mL of CO2 gas was collected over water at 32.0 °C and the total pressure was 795 torr. The vapor pressure of water at 32.0°C is 36 torr and 1 atm = 760 torr. CaCO3(s) CaO(s) + CO2(g) How many grams of CO2 were collected?
What is the hybridisation of the central carbon in allene, H2C=C=CH2? Select one: a. sp3 b. sp2 c. sp d. sp2d e. spdf
QUESTION 3 Solid calcium carbonate (CaCO3) decomposes into solid calcium oxide (Cao) and carbon dioxide (CO) gas according to the following heterogeneous equilibrium: CaCO3(s) = Cao(s) + CO2(g) What is the correct equilibrium constant expression for this equation? OK (CaCO3] [Cao][CO2] ok, = [Coz] [Cao][CO.” [CaCO3] okea 0K = [Cao][CO2] [Ca][CO] (CaCO3] ok
At high temperatures calcium carbonate decomposes into calcium oxide and carbon dioxide. CaCO3 (solid) {> Cao (solid) + CO2 (gas) Find the equilibrium pressure of this system at 1200 K if the equilibrium constant at 1400 K is 26. If the AGº of CaO(solid) and CaCO3 (solid) at 298 Kare -604 and -1128.8 kJ/mol respectively, estimate the equilibrium constant Kat 298 K and the equilibrium pressure. Discuss the effect of pressure on both the conversion of CaCO3 and the final...
When solid CaCO3 is heated, it decomposes to give solid CaO and CO2 gas. A volume of 360 mL of gas is collected over water at a total pressure of 730 mmHg and 16 ∘C. The vapor pressure of water at 16 ∘C is 14 mmHg. CaCO3(s)→CaO(s)+CO2(g) a) What was the partial pressure of the CO2 gas? Express your answer with the appropriate units. b) How many moles of CO2 gas were in the CO2 gas sample? Express your answer...
When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction CaCO3 ---> CaO + CO2 How many grams of calcium carbonate are needed to produce 73.0 of carbon dioxide at STP?
When solid calcium carbonate is heated, it decomposes according to the reaction: CaCO3(s) ⇄ CaO(s) + CO2(g) Kp = 0.50 A sample of CaCO3 is placed in a 1.0 L evacuated flask and heated to 830 Celsius. What is the mass of CaO produced when equilibrium is established? Please show all work. a) 0.411 g b) 0.500 g c) 0.00552 g d) 5.3 g e) 0.310 g
CaCO3(s) = Cao (s)+CO2 (g) When heated strongly, solid calcium carbonate decomposes to produce solid calcium oxide and carbon dioxide gas, as represented by the equation above. A 2.0 mol sample of CaCO3(s) is placed in a rigid 100. L reaction vessel from which all the air has been evacuated. The vessel is heated to 898°C at which time the pressure of CO2(g) in the vessel is constant at 1.00 atm, while some CaCO3(s) remains in the vessel. a. Calculate...
When limestone (solid CaCO3) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas. This is an extremely useful industrial process of great antiquity, because powdered lime mixed with water is the basis for mortar and concrete — the lime absorbs CO2 from the air and turns back into hard, durable limestone. Suppose some calcium carbonate is sealed into a limekiln of volume 750.L and heated to 770.0°C When the amount of CaCO3 has stopped changing, it is...
e. -1135 Given the following reactions: CaCO3 (s)-> Cao (s) + CO2 (g) C (s, graphite) + O2 (g)-> Co2 (g) AH-393.5 kJ the enthalpy of the reaction CaCO3 (s) -> CaO (s) + C (s, graphite) + O2 (g) ΔH = 178.1 kJ is kJ Select one: 4 a. 7.01 x 10 b. 571.6 ) c. 215.4 d. -215.4 ie. -571.6 Check Given the data in the table below, AH for the reaction