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The ideal gas law describes the relationship among the pressureP, volumeV, number of molesn, and absolute temperatureTof an ideal gas. Here is the relationship expressed mathematically:
PV=nRT
where R is a proportionality constant. The units of R are determined by the units of pressure and volume used in the equation. When atm is used for pressure and L for volume, the appropriate Rvalue is 0.0821 L⋅atm/mol⋅K.
How many air molecules are in a14.0×12.0×10.0ftroom? Assume atmospheric pressure of 1.00atm, a room temperature of 20.0°C, and ideal behavior.
Volume conversion:There are 28.2 liters in one cubic foot.
Assume that the heat of combustion of benzene is -4.18 x 103 kJ/mol. Enter your answer with three significant figures in exponential format (1.23 x 104 = 1.23E4).
A sealed flask contains 0.45g of water at 28 °C. The vapor pressure of water at this temperature is 28.36 mmHg. Explain what is the minimum volume of the flask in order that no liquid water is present in the flask
Calculate the wavelength of light emitted from a hydrogen atom when it undergoes a transition from the n=6 level to n=3.
A hot air balloon is filled with 1.51 x 10^6 L of an ideal gas on a cool morning (11 C). The air is heated to 125 C. What is the volume of the air in the ballon after it is heated? Assume that noen of the gas escapes from the balloon.
Assuming that all "other" reactants used in the synthesis of the complex are in excess, calculate the theoretical yield of the complex.
the combustion of ethane produces carbon dioxide and steam2c2h6 7o2 --- 4co2 6h20how many moles of co2 are produces
determined by measuring the amount of hydrogen formed while the sample reacts with an excess of hydrochloric acid. The determination illustrates the sample to be84.0% zinc. Explain what amount of hydrogen measured at STP was obtained
After allowing circulatory equilibrium to be established, a 0.20-mL sample of blood is found to have an activity of 20. counts per second. Calculate the blood volume of the animal.
explain why the pure solvent shows a level horizontal curve as solidification occurs but the curve for the solution
Petroleum is a fossil fuel containing many different carbon componds. If the carbon atoms in petroleum have been in the ground for 100 million years, what fraction of the initial 14C is still there? (t1/2=5,370)
How many OH- ions appear in the correctly balanced equation, and on which side of the arrow?
A student following the procedure in this experiment prepared three solutions by adding 11.50, 23.00, and 34.50 mL of a 7.60 x 10-2M NaOH solution to 50.00 mL of a .112M solution of a weak acide.
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