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When cyclohexane (C6H12) is burned in excess oxygen to produce carbon dioxide gas and liquid water, it releases 3919kJ of heat per mole of cyclohexane burned. A) Write the balanced chemical equation that corresponds to this reaction. B) If 15g cyclohexane is burned in a calorimeter with a heat capacity of 230kJ/K, what temperature change do you expect (assuming that all the heat is deposited in the calorimeter)? C) How much heat is associated with the production of 5.5g water? D) What is the (Delta H(f)) of cyclohexane, given that the (delta H(f)) of H20(g) is -242 kJ, the (delta H(f)) of CO2(g) is -393.5kJ, the reaction CO2(s)=CO2(g) has a (delta H) of 25.2kJ and the reaction H20(l)=H20(g) has a (delta H) of 44kJ.
(a). What is the trend in electronegativity going from left to right in a row of the periodic table? (b) How do electronegativity values generally vary going down a column in the periodic table?
What mass of carbon dioxide is produced from the complete combustion of 6.20×10?3 of methane
Nitrogen gas has a Henry's law constant k = 6.3 × 10-4 M/atm at 25°C. The "bends" in divers results from bubbles of N2(g) being rapidly released from body fluids when a diver ascends to the surface too quickly.
Determine What is the ? Ssys for the process?(if it is given the specific heat capacity for ethanol is 2.42 J/g K.) express your answer in units of J/K
How many atoms of He gas are present in a 450 mL container at 35°C and 740 mmHg
0.80g of hydrogen chloride is dissolved in water to make 2.5L of solution. What is the pH of the resulting hydrochloric acid solution?
When iron chloride FeCl3 is dissolved in water the solution becomes acidic. The preparation of the Fe(NO3)3 solution and the KSCN solution used 0.5 M HNO3 as the solvent instead of water. Explain why this was done. Hint: Consider Le Chatelier's Pr..
A 1.20 gram sample of dry ice is added to a 755mL flask containing nitrogen gas at a temperature of 25.0 degrees Celsius and a pressure of 725 mmHg. The dry ice is allowed to sublime and the mixture is allowed to return to 25.0 degrees Celsius. wh..
The heat capacity of liquid water 4.18 J/g degree celcius and the molar heat of vaporization 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67 degree celcuis into 1.00 g of steam at 100 degrees celci..
what will be the volume of the blimp at a height of 2300 m, where the temperature is 12°C?
Calculate the equilibrium concentrations if the initial concentrations are 2.31M N2 and 0.54M O2. (This N2/O2 concentration ratio is the ratio found in air.)
Consider the combustion reaction between 27.0 mL of liquid methanol (density = 0.850g/mL) and 13.5 liters of oxygen gas measured at STP. The products of the reaction are CO2(g) and H2O(g).
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