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Octane is a highly volatile and flammable substance that is a component of gasoline. The boiling point of liquid octane is approximately 125 degrees celsius . However, due to its volatility, it evaporates readily at normal temperatures and pressures. The pressure on 250 mL of octane gas is decreased from 103 kPa to 94.0 kPa, with temperature remaining constant. What is the resulting volume of octane?
A compound with molecular formula C9H12O has strong infrared absorption at 3300 to 3400cm-1. The 13C NMR spectrum of this compound has six signals. Its 1H NMR spectrum illustrates three singlets at 1.1 ppm (6H), 1.9 ppm (1H), and 7.3 ppm(5H).
it took 35.40mL of 0.100 M NaOH to titrate a 2.55 gram of a weak acid to the equivalence point. The pH when 17.7mL of the NaOH had been added was 6.2. What was the Ka for the acid
Explain the trend in properties in terms of the nature of bonding oxide and chloride in periodic 3
A hypothetical metal has a simple cubic unit cell and its atomic radius is 1.167 Å. Calculate the edge length of the unit cell. A hypothetical metal has a face-centered cubic unit cell and its atomic radius is 1.738
determine the energy change that occurs during the combustion of 1 mole of ethene (ethene's connectivity is: H2C=CH2 also written as CH2=CH2).
At the low temperatures found in some interstellar molecular cloud (around 100 K) molecular oxygen emission is strongest as a wavelength is 0.2521 cm.
Suppose a 4.00 L nickel reaction container filled with 0.0090 M H2 is connected to a 5.00 L container filled with 0.296 M F2. Calculate the molar concentration of H2 at equilibrium.
What is the partial pressure of H2O in the compressed gas mixture? (See this table.) torr (b) What mass of water vapor condenses to liquid g
Theoretical values of pH and [H+] if the experimental value of pH is 11.12 and the molar concentration of ammonia is 0.100
1. How to use Lewis electron-dot symbols to depict main-group atoms and ions
What is the density if carbon dioxide gas at -25.2° C and 98.0 kPa
a 30 gram block of an unknown metal at 86.0oc was dropped into an insulated flask containing approximately 40.0 grams
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