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How much heat is liberated when 5kg of coal is burned if the coal is 96.2 % carbon by mass and the other materials in the coal do not react? Delta H of carbon is -394 KJ/mol
How does the Hammond postulate explain: a. the greater selectivity for bromination vs. chlorination of an alkane? b. the fact that the relative reactivity of C-H bonds of an alkane for free radical chain halogenation is 1º>2º>3º
In the combustion reaction of 149 g of propane with excess oxygen, what volume of carbon dioxide if produced at STP?
If all the energy obtained from burning 1.01 pounds of propane is used to heat water, how many kilograms of water can be heated from 20.7 degrees celsius to 47.1 degrees celsius
What is the pH of a buffer solution containing 0.155 mol dm-3 of benzoic acid and 0.315 mol dm-3 sodium benzoate.
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SI2. Determine the number of bonding electrons and the number of nonbonding electrons in the structure of CO2.
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
Using the values for the heat of fusion, specific heat of water, and or heat vaporization, calculate the amount of heat energy in each of the following
what is the best way to distinguish between levorotatory and dextrorotatory enantiomers if measured optical rotation is
What is the pH of the final solution? Answer IS 7.58 Q 3.) What additional volume of 10.0 M HCl would be needed to exhaust the remaining capacity of the buffer after the reaction described in Part B?
A graduated cylinder contains 23.5mL of water. What is the new water level after 35.2g of silver metal with a density of 10.5 g/mL is submerged in the water
A 0.831-g sample of SO3 is placed in a 1.00 L container and heated to 1100 K. The SO3 decomposes to SO2 and O2: 2SO3 (g) 2SO2 (g) + O2 (g). At equilibrium the total pressure in the container is 1.300 atm.
a solution is made by dissolving 20.0 mL CH3CN. what is the mole fraction of methanol in the solution?
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