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Which would be safer if exposed to a flame, a gas can full of gasoline or a can with half air and half gasoline? Explain.
How many molecules of water are produced when 143 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
Limestone (CaCO3) is decomposed by heating quicklime (CaO) and carbon dioxide. Calculate how many grams of quicklime can be produced from 9.0 kg of limestone.
She records the final temperature of the water as 317K. What is the value of Ccal (calorimeter constant) for the calorimeter.
using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +H2O(g) =CO2 (g) + H2 (g)
If 4.50 g of methane gas (CH4) is in a 2.00-L container at 35°C, what is the pressure in the container?
The density of octane is 0.703 g/mL. What mass (in g) will a 0.996 gallon sample of octane have
Calculate the number of theoretical plates N in the column of length L in 20 cycles. The observed resolution is 1.81. B) Now, calculate the plate height in the column in m.
What is the equilibrium constant of the formation reaction of ammonia gas at 298.15 K under the conditions that the partial pressures
Blood is essentially an aqueous solution but it must transport a variety of non polar substances hormones for example
A 89 L sample of dry air is cooled from 134°C to -18°C while the pressure is maintained at 2.85 atm. What is the final volume?
Assume that 120 grams of CH 3CH 2OH at 29 degree Celsius temperature is added with 250 grams of CH 3CH 2OH at 85 degree Celsius degree Celsius at constant pressure of atmosphere.
A system had 150 kJ of work done on it and its internal energy increased by 60 kJ. How much energy did the system gain or lose as heat?
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