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Use a table listing the ordinate and area for the normal or (gaussian) distribution error curve to find the fraction of a gaussian population within the following boundaries for each one:
1)mu +/- sigma2)mu to + sigma3)mu +/- 2sigma4)mu to -0.67sigma5)-mu to -0.67sigma6). -mu to +0.67sigma
An aqueous CaCl2 solution has a vapor pressure of 83.0 mmHg at 50 degrees celsius . The vapor pressure of pure water at this temperature is 92.6 mmHg.
Find the vapor pressure of a solution that contains 218 g glucose in 460.0 mL of water at 30 degrees Celcius.
3 moles of carbon dioxide gas expands reversibly in a piston-container from 20 L to 40 L in an isothermal process at 400 K. Calculate work, heat, change in internal energy and change in enthalpy, considering van der Waals behaviour. [a = 3.59 atm ..
The equilibrium constant (Kc) for the reaction 2HCl(g)+Cl2(g)yields H2(g)+Cl2(g) is 4.17X10^-34 at 25 degrees C. What is the equilibrium constant for the reaction H2(g)+Cl2(g)tields 2HCl(g) at the same temperature
A 25:75 mixture of acetone:toluene is heated to 70 C at a pressure of 760 mmHg. What is the total vapor pressure of the system? Is the system a liquid below boiling, at boiling, or a gas?
A hazardous waste incinerator has been burning a certain mass of dichlorobenzene (C6H4Cl2) per hour, and the HCl produced was neutralized with soda ash (Na2CO3).
Why don't we observe the deBroglie wavelength of everyday macroscopic objects (such as a moving car or a thrown baseball)? The wavelength is too small relative to the size of macroscopic objects to be observed.
Give the structure of the major and minor organic products formed when HBr reactw with (E)-4,4-dimethyl-2-pentene in the presence of peroxides.
Iranian President Mahmoud Ahmadinejad has a mass of 130 lbs. If Iran abandoned it's nuclear energy program and instead converted its President entirely to energy
For the decomposition of CaCO3 (s) into CaO (s) and CO2 (g) at 1 atm, estimate the minimum temperature at which you would conduct the reaction.
A galvanic cell is prepared by immersing a strip of nickel metal into an aqueous 1M NiSO4 and a strip of silver metal into aqueous 0.100M AgNO3. The two solutions are separated by a porous barrier.
A class is provided with the same mass of pb(II) nitrate but different masses of sodium iodide. the masses of lead II iodide produced will be determined by weighing.
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