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A 3.24 g sample of lauric acid (C12H24O2), a common constituent of fats, is burned in a bomb calorimeter. The temperature of the calorimeter increases by 82.9oC (Celsius). Given that the energy of combustion (?E) for lauric is -37.1 kJ/g, calculate the heat capacity of the bomb calorimeter. Make sure you enter kJ/C for your unit behind the number.
If a 10.00mL sample of unknown concentration of HF is titrated with 28.94mL of 0.1040M NaOH
with this balanced equation of copper carbonate calculate the concentration of copper in solution
Draw Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another.
A 50.00 mL sample of the solution (1L of 0.01000M solution requires 2.14g of potassium iodate), mixed with 2 g of potassium iodide and 10.00 mL of (H_{2}SO_{4}), is fully titrated with 38.50 mL of sodium thiosulfate. What is the concentration of th..
If Ecell =1.44 V for a reaction utilizing 2 moles of electrons for each mole of electrons for each mole of desired product, but measurement shows that Ecell=1.56 V and the temperature is 15 celsius, what is Q
a first order reaction has a half-life of 1.34 x 10-3 hours. if the initial concentration of the reactant is 8.00m what
What is the de Broglie wavelength in cm, of a 12.7 g hummingbird flying at 1.15 multiplied by 102 mph? (1 mile = 1.61 km.)
When the reaction A + B = C is at equilibrium, the concentrations of different chemicals is as follows: [A] = 2.00 mM, [B] = 3.00 mM, and [C] = 9.00 mM. What is the standard free energy change for the reaction
Although all bond lengths in benzene are identical, that is not always true for all aromatic compounds. In napthalene, for instance, the C1-C2 bond is shorter than the C2-C3 bond. Explain, using reasonance theory
Assume the volume of a person can be modeled by a cylinder that is 4 ft tall. The average denisty of a human is 1g/cm3 and the average density of fat is .918 g/cm3.
How much energy (in kilojoules) is required to convert 110 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 ?
Disposable lighters burn butane (C4H10) and produce CO2 and H20. Balance the chemical equation for this combustion reaction and determine how many grams of CO2 are produced by burning 1.00 g of C4H10.
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