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Question- A mixture of nitrous oxide (N2O) and O2 gas has a density of 1.86 g/L at STP. What is the composition of the mixture in mole %? (hint: think about weighted averages analogous to what we do to find isotopic mass)
Any expert will able to provide correct answer for the above question.
Given the balanced reaction below for the oxidation of ethanol by potassium dichromate, calculate the number of liters of a 0.600 M K2Cr2O7 solution needed to generate 0.1665 moles of C2H4O2 from a solution containing excess ethanol and HCl.
A sample of nitrogengas has a volume of 32.4 L at 20 degrees celcius. The gas is heated to 220 degrees celcius at a constant pressure. What is the final volume of nitrogen
a 100.0 g sample of a metal m is burned in air to produce 103.7 gof its oxide with the formula m2o. what is the atomic
the hydrolysis of acetylcholine is catalyzed by the enzyme acetylcholinesterase which has a turnover rate of 25000 s-1.
Consider the following reaction- 2A + B ? 3C + D If 63.0 mol A and 42.0 mol B react to form 54.0 mol C. What is the percent yield of this reaction
if you have a set of h-atom wave functions and wish to evaluate what would be the measured value of the electric dipole
Question- The specific heat of metal is .467j/g degree Celsius. How much energy is released when a 35.0 gram piece of the metal drops in temperature from 355.3 degree C to297.4 degree C
The equilibrium constant for this reaction is Keq=4 at 110C. In a certain experiment, .6 moles each of water vapor and carbon monoxide are introduced into a 2 Liter vessel at 110C
Benzene is an organic liquid that freezes at 5.5 degrees celsius. how much heat is evolved when 25.5g of benzene freezes at 5.5 degrees celcius. (the molar heat of fusion is 9.94kJ/mol and the molar mass of benzene = 78.0g/mol)
The atmospheric pressure is 762 mmHg. The temperature of the experiment is 27 C. Define how many moles of hydrogen have been liberated, as well as what is the mass of the magnesium that reacted
What pH is needed to increase the solubility of Mn(OH)2 to 2.5 x 10-3M? Ksp for Mn(OH)2 = 1.6 x 10-13.
The temperature of an ideal gas is raised from15.0 deg C to 38.0 deg C at constant pressure. The final volume of gas is 2.79 L. Explain what was the initial volume of gas
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