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Butane has a heat of vaporization of 22.44 kj/mol and a normal boiling point of -0.4 C. A 250 ml sealed flask contains 0.6 g of butane at - 22C. How much butane is present as a liquid
Determine the mass of carbon dioxide produced when .85 grams of butane reacts with oxygen according to the following equation : 2C4 H10 + 13O2 ->8CO2 + 10H2O
A 2.78 10-4 M solution of a compound has an absorbance of 0.451 at 520 nm in a 1.00 cm cell. The solvent's absorbance under the same conditions is 0.019. What is the molar absorptivity of the unknown compound
olutions of sucrose (table sugar, C12H22O11) are used in high speed centrifuges to separate the parts of a biological cell. How many liters of 3.53 M sucrose contain 111 g of solute
Equilibrium concentration for N2O4=2NO2 is 4.6*10-3. the mixture contains 8.0*-2, what is the equilibrium of N2O4?
The reaction 2NO+Cl2=2NOCl is carried out in a closed vessel. If the partial pressure of NO is decreasing at the rate of 20 torr/min, what is the rate of change of the total pressure of the vessel?
Two objects at different temperatures are placed in a perfectly insulated calorimeter. When the system reaches equilibrium, which of the following statements is true?
theoretically feasible in a solution that initially 0.250 M in each ion? c.) If separation is feasibe in eithee (a) or (b), what ranfe of anode potential (vs. SCE) should be used?
Dehydration of 2-methyl-2-pentanol forms one major and one minor organic product. Draw the structures, including hydrogen atoms,
Propane, C3H8, when used as a fuel, reacts with oxygen gas to produce carbon dioxide and water. What mass of oxygen will be required to react with exactly 14.05 grams of propane?
Given the values of DGfo given below in kJ/mol, calculate the value of DGo in kJ for the combustion of 1 mole of propane to form carbon dioxide and liquid water.
How many lone pairs of electrons are there in a molecule of crotononitrile?
Understanding of chemistry basics - which of the following is not changed by the activity of an enzyme during a chemical reaction?
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