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use the appropriate relationships from the chapter of electrons in Atoms to determine the wavelength of the line in the emission spectrum of He+ produced by an electron transition from n=5 to n=2
What is the height of the column that contains a solution of Sucrose (C12H22O11) with 21% weight percentage of Sucrose?
Calculate the volume of 1.94×10-3-M H2SO4 solution needed to provide 4.83×10-3 g of H2SO4.
The solubility of O2 in water is 0.590 g/L at an oxygen pressure of 15 atm. What is the Henry's law constant for O2 (in units of L atm/mol)
Indicate the concentration of each of ion present in the solution formed by mixing
What pressure in torrs, will be exerted by 3.57g of nitrogen monoxide at 34 degrees C
If 32.0 g CaC2 are consumed in this reaction, how many moles of H2O are needed?
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain.
The Occupational Safety and Health Administration has set the limit on the maximum percentage of carbon dioxide (CO2) in air a worker can breathe at 0.500% by mole
How many moles of gas are contained in a human breath that occupies 0.45 L and has pressure of 747
How many moles of AgCl are produced when 100.0 mL 0.387 M silver nitrate, AgNO3, and 50.0 mL of 0.774 M sodium chloride, NaCl, are mixed AgNO3(aq)+NaCl(aq)---->AgCl(s)+NaNO3(aq)
Determine the empirical and molecular formulas of Ibuprofen has 75.69% C, 8.80%H and 15.51%O by mass and has a molar mass about 206g/mol.
could 131g of xenon gas in a vessel of volume 1.0dm^3 exerts a pressure of 20 atm at 25C if it behaves as a gas? if not what pressure would it exert? (b) what pressures would it exert if it behaved as a van der waals gas?
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