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You enhance the temperature of the syringe to 65oC; the total pressure remains 1.00 atm, but the volume increases. Resolve the volume of the syringe at the new temperature. (Assume that the water va
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapour.
The Oxygen collected in this experiment is dried thoroughly to remove all traces of water vapour and stored in a 300. mL glass bulb at 550C. Calculate the pressure inside the bulb.
What is the utmost wavelength of energy needed to observe a photoelectric effect for potassium.
Removing an electron from solid potassium requires 222 kj/mol. would you expect to observe a photoelectric effect for potassium using a photon of blue light (^=485nm).
If hydrogen atom is excited from an n = 1 state to an n = 3 state, how much energy does this correspond to? Is this absorption or an emission.
To what region of electromagnetic spectrum does this correspond.
To which region of the electromagnetic spectrum does each wavelength belong.
Calculate the amount of energy present in the following photons and find the region of electromagnetic spectrum for each.
The human eye is sensitive to what fraction of the electromagnetic spectrum, assuming a spectral a special range of 10^4 to 10^20 Hz? If we came from the planet Krypton and had X-ray vision (that is
A sample of air contains only nitrogen and oxygen gases whose partial pressures are 0.80 atm and 0.20 atm, respectively. Compute the total pressure and the mole fractions of the gases.
Dissolving 3.00 g of an impure sample of calcium carbonate in hydrochloric acid produced 0.656 L of carbon dioxide (measured at 20.0 degrees C and 792mm/Hg). Compute the percent by mass of calcium
A quantity of 0.25 g of a metal M (molar mass = 27.0 g/mol) liberated 0.303 L of molecular hydrogen (measured at 17 degrees C and 741 mmHg) from an excess of hydrochloric acid. Deduce from these dat
A compound of P and F was analyzed as follows: Heating 0.2324 g of the compound in a 378-cm cubed container turned all of it to gas, which had a pressure of 97.3 mmHg at 77 degrees C. Then the gas w
Under constant-pressure conditions a sample of hydrogen gas at first at 88 degrees C and 9.6 L is cooled until its final volume is 3.4 L. What is its final temperature.
A gas occupying a volume of 725 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume.
Ammonia burns in oxygen gas to form nitric oxide ( NO) and water vapor. How numerous volumes of NO are obtained from one volume of ammonia at the same temperature and pressure.
Molecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressure it is found that one volume of Cl2 reacts with three volumes of F2
A sample of nitrogen gas kept in a container of volume 2.30L and at a temperature of 32 degrees C exerts a pressure of 4.7 atm. compute the number of moles of gas present.
What volume would 5.6 moles of sulfur hexafluoride (SF6)gas occupy if the temperature and pressure of gas are 128 degrees C and 9.4 atm.
Dry ice is solid carbon dioxide. A 0.050-g sample of dry ice is placed in an evacuated 4.6-L vesselat 30 degrees C. compute the pressure inside the vessel after all the dry ice has been converted to
An ideal gas originally at 0.85 atm and 66 degrees C was allowed to expand until its final volume, pressure, and temperature were 94mL, 0.60 atm, and 45 degrees C, correspondingly. What was its init
Ozone molecules in stratosphere absorb much of the harmful radiation from the sun. Characteristically, temperature and pressure of ozone in the stratosphere are 250 K and 1.0 x 10 to the negative th
A 2.10 L vessel contains 4.65 g of gas at 1.00 atn and 27.0 degrees C.
Assume that air contains 78 percent N2, 21 percent O2, and 1 percent Ar, all by colume, how many molecules of each type of gas are present in 1.0 L of air at STP.