Number of moles of gas in the sample
A sample of nitrogen gas in a 4.7-L container at a temperature of 28°C exerts a pressure of 3.6 atm. Calculate the number of moles of gas in the sample.
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C2H4(g) + O2(g) CO2(g) + H2O(g) How many moles of O2 would be required to react with 0.410 moles of C2H4 in the above unbalanced reaction?
How much energy (in kilojoules) is released when 33.0 {rm g} of ethanol vapor at 95.0^circ {rm C} is cooled to -19.5^circ {rm C}?
How many pi bonds are there in a molecule of crotononitrile? How many sigma bonds are there?
What mass of sucrose should be combined with 537 of water to make a solution with an osmotic pressure of 8.55 at 275 ?
Find the heat of combustion in kJ/g for each gas. These values are valid at 25°C, where the water produced by the reaction is in the liquid state.
The rate of a first order reaction is 4.6 x 10 to the -4 power at 638K. If the activation energy is 104 kj/mol, calculate the temperature in K at which the rate constant is 8.80 x 10 to the -4 power.
The half life for the first-order decomposition of sulfuryl chloride at 320ºC is 8.75 h. SO2Cl2 (g) → SO2 (g) + Cl2 (g). What is the value of the rate constant k, in s-1?
A solution was prepared by mixing 50.00 mL of 0.190 M HNO3 and 124.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
When monitoring the reaction between benzene and 2-chloro-2-methyl-propane using FeBr3 as the catalyst, researchers observed the formation of a new alkyl halide. Draw the structure of this compound and show how it was formed using an arrow-pushing
Describe the process that will result in the greatest amount of work done by the system with a constant external pressure and calculate w. What is the least amount of work done with no restrictions on the external pressure?
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