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A gas expands from 360. mL to 971 mL at constant temperature. Calculate the work done (in joules) by the gas if it expands against a vacuum.
What is the dipole moment of a diatomic molecule having a bond length of 156.0 pm and 19 percent ionic character
a gas expands against a constant external pressure of 0.9 bar until its volume has increased from 6.8 l to 10.4 l.
A researcher studying the nutritional value of a new candy places a 4.40-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.86 °C.
the molar mass of air is 29.9g/mole and density of air at these temp. is 1.22 g/L. how much methane do u have to heat the sir from 15 centigarde to 22 centigrade
A particular reactant decomposes with a half-life of 133 s when its initial concentration is 0.271 M. The same reactant decomposes with a half-life of 219 s when its initial concentration is 0.165 M.
calculate the molar mass of vitamin c where a solution contains 55.0 g of vitamin c dissolved 25.0 g of water. the
calculate the change in enthalpy and entropy of 50g of liquid water starting at 10 degrees celsius and completely
provide a specific step by step mechanism ( with curved arrow notation) for the conversion of 4-hydroxybutanal to 4-chloro-1-butanol, and then from 4-chloro-1-butanol to tetrahydrofuran.
Compare HASAW Act with Occupational health and safety regulations of Sultanate of Oman. and give an outline of what would be needed to set up a suitable safety management system to control the hazards in a chemical process industry
given 2h2o2 -gt 2h2o o2if 6.06 l of o2 gas is collected over water at 250c vapor pressure 23.8 torr and a barometric
How would the calculated molar mass change(increase,decrease,no change) if the following experimental problems were encountered? explain the reason for your answer. (a)the unknown was impure and only part of the unknown dissolved in the lauric aci..
What is the empirical formula of the compound if Quantitative analysis of a 5.00-g sample of a gaseous compound yielded the following results: 2.00 g sulfur and 3.00 g oxygen?
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