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The normal boiling point of actone is 56.2 C and the molar heat of vaporization is 32.0 kJ/mol. At what temperature will acetone boil under a pressure of 50.0 mm Hg?
The reaction 2NO(g) + Cl2 (g) -> 2NOCl(g) is carried out in a closed vessel. If the partial pressure of NO is decreasing at the rate of 21 torr/min, what is the rate of change of the total pressure of the vessel?
If 50 g of KNO3 is completely dissolved in 100 g of water at 70 degrees Celcius, is the solution saturated, unsaturated, or supersaturated?
hydrogen is collected over water, two gases are present hydrogen and water vapor.calculate partial pressure of hydrogen gas. Barometric pressure = 773.94 mmhg.
A solution is prepared by mixing 0.0300 mol CH2Cl2 and 0.0500 mol of CH2Br2 at 25°C. Assuming the solution is ideal, calculate the composition of the vapor
A 54.7-g sample of aluminum at 95.0 oC is dropped into 35.0 g of water at 40.0 oC. What is the final temperature of the mixture? (specific heat capacity of aluminum = 0.89 J/goC; specific heat capacity of water = 4.184 J/g degreesC)
If all 0.44 gigatons CO2 remain in the atmosphere and spread around the atmosphere evenly, what concentration in ppm would it constitute?
An experimenter finds that she is unable to establish a premixed carbon monoxide flame when using an oxidizer composed of high-purity O2 (21%) and high-purity N2 (79%)
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women.
A voltaic cell is created with one half-cell consisting of a copper electrode immersed in 1.0 M CuSO4 solution and the other half cell consisting of a lead electrode immersed in a 1.0 M Pb(NO3)2 solution. Each half-cell is maintained at 25o C. Wha..
A compound contains 43.64% P with the remainder being oxygen. What is the empirical formula of the compound?
If a customer replaces a 85 watt bulb with an 20 watt compact fluorescent bulb that lasts 5000 hours, how much less coal (lbs)will be used to generate the electricity that is saved?
The pressure is changed to 8.75 atm and the gas is cooled to 15 C. Calculate the new volume of the gas using the ideal gas equation.
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