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A sample of iron(II) sulfate was heated in an evacuated container to 920 K, where the following reactions occurred. 2 FeSO4(s) reverse reaction arrow Fe2O3(s) + SO3(g) + SO2(g)
reaction a
SO3(g) reverse reaction arrow SO2(g) + 1/2 O2(g)
reaction b
After equilibrium was reached, the total pressure was 0.836 atm and the partial pressure of oxygen was 0.0275 atm. Calculate Kp for each of these reactions.
For a general reaction order n, determine the rate equation, the variables to be plotted to obtain a graph with a linear slope equal to the rate constant k (or -k), and an expression for the ½ life
NMR of D exhibits resonance at -4 ppm. - On heating D, a flammable gas and A are formed. - Reaction of C with CH3I affords white solid E whose proton NMR shows a single resonance around 0.2 ppm. Identify A-E.
Calculate change in E, q, w, and change in H and the final temp if the expansion is carried out according to each of the following paths:
CsF has a lattice energy -744kJ/mol . Consider a hypothetical salt XY. X^3+ has the same radius of Cs^+ and Y^3- has the same radius as F^- . Estimate the lattice energy of XY
A 25-g sample of an alloy at 98 C is placed in 50. g water at 17 C: If the final temperature reached by the alloy sample and water is 27 C, what is the specific heat (cal/gC) of the alloy?
Calculate the mass(in grams) of solids you must measure out to prepare 100 mL each of 0.025 M CuSO4, 0.025 M Ca(NO3)2, 0.025 M Al(NO3)3, and 0.025 M KCl.
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
Draw a reaction coordinate diagram for a one-step, exothermic reaction in which the the thermodynamic product is not the kinetic product (that is, the most stable product is the slowest to form).
Hydrogen cyanide is prepared from ammonia (NH3) and natural gas (CH4).2 NH3 (g) + 3 O2 (g) + 2 CH4 (g) → 2 HCN (g) + 6 H2O (g)
dissolved in water and completely neutralized by the addition of 43.70 mL of 0.303 M NaOH. Calculate the molar mass of the acid, assuming it to be a monoprotic acid.
What is the maximum mass of aluminum chloride that can be formed when reacting 15.0 of aluminum with 20.0 of chlorine
Please note that NO3 has an odd number of electrons. But you must decide where the missing electron will be. Does the central atom violate the octet rule or do the oxygen atoms? Use formal charges to decide.
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