Calculate the surface area in nm^2 of water contained in a watch glass with a diameter of 9.0cm. The area of a circle is calculated as A=r^2(pi) If a molecule of stearic acid covers an area of 0.21 nm^2, how many stearic acid molecules will it take to cover the surface of the watch glass in question 3.

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Q: Draw a stepwise mechanism for each reaction.

A: The possible stepwise mechanism for the reaction is shown below.

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Q: A My Hôme OWLV2 | Online teaching and learning resource from Ce [References] The population density…

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Q: The concentration of carbon monoxide in an urban apartmentis 48 μg/m3. What mass of carbon monoxide…

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Q: calculate volume H2=Volume displaced water

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A: The given compound is ethanol. The molar mass of the ethanol is 46.07 g/mol.

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.