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Humid air at 32 °C , 760 mmHg and 80 % relative humidity is fed to a cooling chamber at constant pressure to condense some of the water vapor out of the humid air. The exit air leaves at 4 °C, 760 mm Hg and 100% relative
humidity. If the lquid condensate flows at a rate of 4 kg/h. Calculate the feed rate of humid air in SCMH?
Vapor pressures of water at 32 °C and 4 °C are 35.7 mm Hg and 6.1 mm Hg respectively. Treat air as a mixture of two components: dry air and water vapor.
a 12.09-g sample of solid sodium bicarbonate completely decomposes into solid sodium hydroxide and carbon dioxide gas when heated.
Use Charles's law to calculate the volume the gas will occupy if the temperature is increased to 170.5^circ C while the pressure is held constant.
Predict the precipitate that forms when aqueous solutions of silver nitrate and potassium chloride react to form products in a double-replacement reaction. Include a discussion of how to write the complete chemical equation describing this reactio..
When a 7.00-g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of 2.734 kJ·K-1, the temperature decreases by 0.460 K.
Calculate the de Broglie wavelength of an neutron moving at 1% the speed of light. Calculate the velocity of a neutron with a wavelength of 75pm.
If the reaction N2(g) + 3H2(g) ! 2NH3(g) is carried out at constant temperature and pressure, how much H2 is required to react with 6.4 L liters of N2.
Calculate the concentration of chloride ions when 100.0 mL of 0.205 M sodium chloride is mixed with 250.0 mL of 0.150 M calcium chloride.
Based on the solubility rules, which one of these is insoluble in water?
a student begins with 5.00 mL of acetic anhydride and 2.08 g of salicylic acid. Once the reaction is complete, the student collects 2.01 g of aspirin
Determine the mass of precipitate (in grams) that forms when 213.8 mL of 0.132 M CaCl2 solution is reacted with excess AgNO3 solution.
Calculate the electrode potential of the following half cell if it was at standard conditions. Then recalculate how this changes using.
a sample of air contains 78.08% nitrogen, 20.94% oxygen, .05%carbon dioxide and .930% argon by volume. How many molecules of each gas are present in 1 liter of the sample at 25 degrees celsius and 1 atmosphere?
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