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A. Using the following mean bond enthalpy data to calculate dH of the reaction:.C3H8(g) + 5O2(g) = 3CO2(g) + 4H2O(g)Bond Mean enthalpy(kJ mol-1)C-C 348O=O 496O=C 743O-H 463C-H 412B. The energy released in the the above reaction is used to heat ice from 0C to 50C, what is the ice's mass?Cwater=4.18J*mol-1*K-1dHfus=6.01kJ*mol-1
Problem- Write the full orbital diagram for nitrogen (atomic) and circle the valence electrons. Using the concept of penetration, could the 2p electrons experience a stronger effective nuclear charge. If so why
Important information about Second Order Reaction, The reaction of CH3CH2NO2 + OH- --> H2O + CH3CHNO2 - is a second order and k at 273 K
A campfire is a chemical reaction involving wood and oxygen from the air. In light of the law of conservation of mass explain what happens to the mass of the wood during the reaction. Define how is mass conserved if the wood disappears
Carbon dioxide and water vapor are produced when heptane (C7H16) combusts. How many grams of octane must be combusted in excess oxygen to generate 588-g of CO2
Pick the one from each a,b,c,d,e and explain it has this property. Briefly explain your answer. a) Highest boiling point: LiF or ClCH2COOH b) Highest vapour pressure at 25 degrees: CH3CH2COOH or CH3COOCH3 c) Lowest melting point
Silicon Carbide is a hard substance used as an abrasive. it is prepared by heating SiO2 and carbon at high temperatures SiO2 + 3C = SiC + 2 CO determine the limiting and excess reactant.
a laboratory sample of gas is known to have a carbon monoxide concentration of 50 ppm. a spectrophotometer is used to
What region of the C13 NMR spectrum would you find a resonance for the carbonyl group of an aliphatic ketone
Then the gas is cooled at a constant volume of 22.3L back to its original temperature. Then it contracts back at a constant tempurature to its original volume. What is the total heat flow for the process
A piece of solid carbon dioxide, with a mass of 47.0 g, is placed in an otherwise empty 5.00 L container at 27 degrees Celcius. What is the pressure in the container after all the carbon dioxide vaporizes
The specific heat of ethanol is 2.46 J/goC. Find the heat energy required to raise the temperature of 193 g of ethanol from 19oC to 35oC.
the chemical reaction between reagents supplied from an outside source. What is the emf of a cell fuelled by (a) hydrogen and oxygen, (b) the combustion of butane at 1.0 bar and 298 k.
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