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In a hypothetical reaction leading to the formation of carbon dioxide, it was found that at 150 seconds the concentration of carbon dioxide was 0.162 mol/L and at 579.5 seconds the concentration of carbon dioxide was 0.972 mol/L. What is the rate of formation of carbon dioxide over the specified time period in this reaction?
At 2000 degrees celcius the equiblibrium constant for the reaction 2NO to N2 and O2 is Kc = 2.4 x 103. If the initial concentration of NO is 0.200M, what are the equilibrium concentrations of NO, N2, and O?x?
How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above? What is the normality of solution mentioned above? How many H+ ions are present in 1.000 mL of this solution?
what is the percent by mass of nahco3 in a solution containing 30 g of nahco3 dissolved in 500 ml of
what is the expected freezing point of an aqueous solution of 2.62 kg of nitric acid hno3 in a solution with a total
Define Ideal gas law, Calculate the free energy of mixing when 1 mole of liquid A is mixed with 4 moles of liquid B at 25 degrees C to form an ideal solution. What is the change in chemical potential of component A?
A flask containing a mixture of NH3(g) and CH4(g) is cooled. At -33.3 degrees celcius a liquid begins to form in the flask. What is the liquid? NH3(g) or CH4(g)
a 32.65-g sample of a solid is placed in a flask. liquid toluene in which the solid is insoluble is added to the flask
what concentration of aqueous NaCl solution freezes at -15.2 C? the freezing point of pure water is 0.0 C and Kf of pure water is -1.86 C/m.
two thermometers a and b are wrapped in pieces of gauze. the gauze around thermometer a is moistened with water and the
Oxygen gas is commonly sold in 45.5 L steel containers at a pressure of 131atm .What volume (in liters) would the gas occupy if its temperature was raised from 20.0 C to 35.5 C at constant 131 atm
Acid rain over the Great Lakes has a pH of about 4.5. Calculate the [H_3O^+] of this rain.
Calculate the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq)
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