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Review | Constants I Periodic Table Consider the reaction at 298 K: 2H, S(g) + SO2(g)...
Review Constants Periodic Table Part B Consider the balanced chemical equation. H2O3(aq) +31 (aq) + 2H+ (aq) + (aq) + 2H20(1) In the first 10.0 s of the reaction, the concentration of drops from 1.000 M to 0.820 M You may want to reference (Pages 625 - 628) Section 14.2 while completing this problem. Predict the rate of change in the concentration of 13" (A13 /At) Express the rate to three significant figures and include the appropriate units. ? A[13]...
n Review | Constants Periodic Table 2 Ca(s) + O2(g) + 2Cao(s) AH = -1269.8 kJ; ASX = -364.6 J/K Part A For this problem, assume that all reactants and products are in their standard states. You may want to reference (Pages 811 - 815) Section 18.6 while completing this problem. Calculate the free energy change for the reaction at 24 °C. Express your answer using four significant figures. V AEQ O 2 ? AG = Submit Previous Answers Request...
Item 15 15 of 28 Review I Constants I Periodic Table 3+ A solution contains Cr and Mg. The addition of 1.00 L of 1.53 M NaF solution is required to cause the complete precipitation of these ions as CrF3 (s) and MgF2(s). The total mass of the precipitate is 49.8 g You may want to reference (Pages 331 - 336) Section 8.5 while completing this problem Part A Find the mass of Cr3+ in the original solution. V ΑΣφ...
Review Constants Pe Consider the following reaction: 2H,8(g) + S0 (9) 3S(x) + 2H20(9) A reaction mixture initially containing 0.490 MH,S and 0 490 M SO, was found to contain 1.1x10-3 MH,O at a certain temperature. A second reaction mixture at the same temperature initially contains (H S = 0.260 M and (SO2] = 0.315 M Part A Calculate the equilibrium concentration of H2O in the second mixture at this temperature. Express your answer using two significant figures. VO AE...
calculate the delta G of 295K, 1075K, and 1435K Review I Constants I Periodic Table Consider the following reaction: CaCO3 (s)CaO(s) + CO2(g) Estimate AG for this reaction at each of the following temperatures. (Assume that ΔΕ ASo do not change too much within the given temperature range.) and
Chapter 18 Thermodynamics Homework 1.Predict the sign of AS for each process: a) The boiling of water b)2HgO(s)-2Hg(I) + 02(s) c) CaCO, (s)CaO(s)+ CO (g) 2. Is the following process spontaneous or nonspontaneous at a given temperature? NaNO,(s) ->NaNO,(aq) 3. If a reaction has ΔS < 0 and ΔΗ < 0 will the reaction always be spontaneous, spontaneous at low T, spontaneous at high T, or never spontaneous? 4.Consider this reaction: Calculate ΔG at 25 °C and determine whether the...
MasyChemistry Crap Review Constants Periodic Table The data below show the concentration of N20 versus time for the following reaction: You may want to reference (Pages 598-605, Section 14.5 while completing this problem Part A Determine the order of the reaction N205(g) + NO(g) + NO3(g) Time (s) (N20s] (M) 1.000 0.822 0.677 0.557 0.458 0.377 Request Answer Submit 0.310 0.255 0.210 Part B Complete previous parts) Part C Complete previous partis) Provide Feedback
Please explain, thank you! (4) Consider a cell at 298 K in which the reaction is Pb (s)+2H (aa-Pb2+ (ag) +H2 (g) (a) Cr ions are added to the Pb|Pb2+ half-cell to precipitate PbCh. The cell voltage is then measured to be +0.210 V. If [H]-1.0 M and the partial pressure of hydrogen is 1.0 atm, what is [Pb2*]? (answer: 1.57 x 103 M) (b) Calculate the Kp of PbCh if [Cl]-0.10 M in the PblPb2 half-cell. (answer: 1.57 x...
Constants | Periodic Table Part A Hydrogen sulfide (H2 S) is a common and troublesome pollutant in industrial wastewaters. One way to remove H2S is to treat the water with chlorine, in which case the following reaction occurs If at a given time the concentration of H2S is 2.2*10 M and that of Cl2 is 0.027 M, what is the rate of formation of Cl-? Express the rate in molarity per second to two significant figures. H2S(aq) + C12 (aq)...
Review Constants Periodic Table Mothballs are composed primarily of the hydrocarbon naphthalene (C10H8). When 1.025 g of naphthalene is burned in a bomb calorimeter, the temperature rises from 24.25 °C to 32.33°C. You may want to reference (Pages 265-266) Section 6.5 while completing this problem. Part A Find A Erxn for the combustion of naphthalene. The heat capacity of the calorimeter, determined in a separate experiment, is 5.11 kJ/°C. Express the change in energy in kilojoules per mole to three...