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The reaction
2N2O(g) 2N2(g) + O2(g)
has ΔHº = -163.14 kJ. What is the value of ΔEfor the decomposition of 161 g of N2O at 25 ºC? If we assume that ΔHdoesn't change appreciably with temperature, what is ΔEfor this reaction at 331 ºC?
two naturally occurring isotopes with atomic weights 184.9530 and 186.9560. What is the percent abundance of the lighter isotope
the flask was filledto the calibration mark with water. What were the equilibrium concentrations of H3PO4,H2PO-, HPO-2, PO-3, and H+ in the resultant solution. Ka1 = 7.1x10-3, Ka2 = 6.3x10-8, and Ka3 = 4.2x10-13 for H3PO4.
To find the value of the equilibrium constant at each temperature you must first find the value of G0 at each temperature by using the equation G0 = H0 - TS0 For this reaction the values are H0 = +88.3 kJ/mol and S0= 151.3 J/mol*K
Phenol, C6H5OH, is a weak organic acid. Suppose 0.515 g of the compound is dissolved in exactly 125 ml of water. The resulting solution is titrated with 0.123 M NaOH.
For a reaction a plot of ln k (rate constant) vs 1/T gave a line with y-intercept of 5.2. what is the value of the frequency factor for this reaction
Explain and show using a graph why, at any given wage, a monopoly firm will hire less labor than the total employment if the industry were competetive
Determine a dimension characteristic of a single aluminum atom. Compare your estimate value to the tabulated atomic radius for aluminum.
A sample of propane C3H8 contains 16.3moles of carbon atoms. Explain how many total moles of atoms does the sample contain. Articulate the total number of moles of carbon and hydrogen numerically
What volume of ammonia could be made from the reaction of 2.5 liters of nitrogen (N2) and 8.5 liters of hydrogen (H2) at STP?
Consider the unbalanced equation above. A sample of impure mercury(II) oxide is heated and the HgO decomposed completely. If 580. mL of O2 is collected by displacement of water at a barometric pressure of 790.0 mm Hg and 25.0°C,
If the pressure of a gas is 39.18 atm in a piston, what is the final pressure, in atm, if the volume of the piston is multiplied by 4 at a constant temperature?
The solubility of MnSO4 in water at 20C is 70g per 100mL of water. Is a solution at 20C that is 4.22M in MnSO4 is best explained as- saturated, unsaturated, supersaturated or hydrated
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