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Isooctane, C8H18, is the basis of the octane rating system for gasoline because it burns smoothly, with minimal engine knocking. Pure isooctane is assigned a value of 100. Octane ratings are assigned to gasoline mixtures based on their ability to prevent knocking relative to isooctane. Estimate the energy released during the combustion of 1.00 mol of pure isooctane.
The pH of the resulting solution is 6.35. Calculate the Ka for the acid.
If 8.88 X 10^7 aluminum atoms can fit along a 1.00 inch line, what is the diameter of a single aluminum atom?
A chemist prepares a solution by dissolving 4.168 g of NaNO3 in enough water to make 200 mL of solution. What molar concentration of sodium nitrate should appear on the label.
calculate the IHD and select all the types of unsaturation that might be present in the molecule based on the IHD.
a 10.00g sample of toothpaste contaning stannous fluoride gives0.145g precipitate of stannous phosphate.what is the percentage of snf2 in the toothpast sample.
The boling point of water in city a is 94 degrees celcius and in city b it is 97 degrees celcius. which is at the higher elevation.
What is the animals inital radiation exposure in curies? b. If all of the energy from the emitted alpha particles is absorbed by the animal's tissues, and if the energy of each emission
It takes 54.0 J to raise the temperature of an 11.7 g piece of unknown metal from 13.0C to 25.0C}. What is the specific heat for the metal?
Sn2 requires a strong nucleophile while E2 requires a strong base. But relatively compared if you have a very strong base the E2 is preferred. Why is it so?
If 69.5 kJ of heat is applied to a 1040. g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
Calculate the work done (in Joules) by the gas if it expands. (a) against a vaccum
we know that actually it is filled with a mixture of gases called air. If the flask volume is 4.00 L, and the air is at standard temperature and pressure, how many gaseous molecules does the flask contain?
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