73: Consider the equation for the combustion of acetone (C3H6O), the main ingredient in nail polish remover: C3H6O) + 402(g) -> 3CO2(g) + 3H2O(g) dHrxn = -1790 kJ. If a bottle of nail polish remover contains 155 g of acetone, how much heat is released by its complete %3D combustion?

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Q: pKa=-log(2.5 x 10-7)

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A: From the given experimental data we can first calculate the order of the reaction.

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.