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On a Particular summer day, the temperature is 30.0 degrees Celsius and the relative humidity is 80.0% ( which means that the partial pressure of water vapor in the ambient air is 80.0% of the equilibrium vapor pressure of water). A sample of this air is placed in a 1.00 L flask, which is then closed and cooled to 5.0 degrees Celsius. What is the mass (in grams) of the water that still exists as vapor in the flask? How much liqiud water ( in grams) condenses out?
Suppose that an excess of propane, C3H8 burns in 320 g of O2. How many moles of H2O will be formed
An unknown mass of each of sand, initially at 24.0, absorbs 1970 of heat. The final temperature is 62.2 degrees C. Find the mass of sand.
Describe the intermolecular force that must be overcome in converting each of the following from a liquid to a gas
Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose
milk is pasteurised when heated to 63 C for 30 minutes, but if it is heated to 74 C it takes only 15 seconds for the same result. Find the activation energy for this sterilisation process
How many moles of NH3 can be produced from the reaction of 0.5 moles of N2 with that amount of H2?
When a metal was exposed to light at a frequency of 4.54× 10^15 s-1, electrons were emitted with a kinetic energy of 3.10 × 10^-19 J.
if you burn 51.8 g of hydrogen and produce 463g of water, how much oxygen reacted?
Determine the enthalpy for the given reaction as CS2
An electric power station annually burns 3.6 107 kg of coal containing 1.8 percent sulfur by mass. Calculate the volume of SO2 emitted at STP.
How many moles contain each of the following? 3.75 x 10^24 molecules CO2
Consider a 1.00-L solution containing 85.5 g Al2(SO4)3 (FW = 342.15) and 21.3 g Na2SO4 (FW = 142.06). What are the molar concentrations of aluminum, sodium, and sulfate ions, respectively.
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