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Close Problem Tutored Practice Problem 14.2.1 COUNTS TOWARDS GRANDE Calculate...
Tutored Practice Problem 14.4.1 COUNTS TOWARDS GRADE Use the integrated rate law to calculate reactant concentration...
Tutored Practice Problem 14.4.1 COUNTS TOWARDS GRADE Use the integrated rate law to calculate reactant concentration at time t The decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °C Close Problem is first order in N205 with a rate constant of 4.10x103 min-1, If an experiment is performed in which the initial concentration of N205 is 1.14 M, what is the concentration of N205 after 505 minutes have passed? Check & Submit Answer Show Approach
Tutored Practice Problem 19.3.4 COUNTS TOWARDS GRADE Calculate the equilibrium constant from the standard free energy...
Tutored Practice Problem 19.3.4 COUNTS TOWARDS GRADE Calculate the equilibrium constant from the standard free energy change. Close Pr Using standard thermodynamic data (linked), calculate the equilibrium constant at 298.15 K for the following reaction. N2(g) + O2(g) +2NO(g) K- Check & Submit Answer Show Approach
Close Problem Tutored Practice Problem 15.3.2 COUNTS TOWARDS GRADE Use an /CE table to calculate K...
Close Problem Tutored Practice Problem 15.3.2 COUNTS TOWARDS GRADE Use an /CE table to calculate K A mixture of CO and Cl, is allowed to react at 585 K CO(g) + Cl2(g) cOC2(g) The initial concentration of the reactants are [cO] = 0.3050 M and [Cl2] = 0.3390 M. After the system reaches equilibrium, it is found that the Ch concentration has decreased to 0.0659 M. Based on these data, determine the value of the equilibrium constant, K, for this...
Close Problem Tutored Practice Problem 19.3.1 COUNTS TOWARDS GRADE Calculate standard free energy change using AH and S...
Close Problem Tutored Practice Problem 19.3.1 COUNTS TOWARDS GRADE Calculate standard free energy change using AH and So values. Consider the reaction CH4(g) + H2O(g)—_>3H2(g) + CO(g) Calculate the standard free energy change for this reaction at 25°C from AHºrn and AS rxn: AGºrxn = kJ/mol Check & Submit Answer Show Approach
Tutored Practice Problem 18.1.3 cOUNTS TOWARDS GRADE Use equilibrium ion concentration to calculate Ksp Close Problem...
Tutored Practice Problem 18.1.3 cOUNTS TOWARDS GRADE Use equilibrium ion concentration to calculate Ksp Close Problem The Pb2+ concentration in a saturated solution of lead chloride is measured and found to be 1.65x102 M. Use this information to calculate a K,p value for lead chloride. Ksp Check & Submit Answer Show Approach
Close Problem Tutored Practice Problem 15.4.2 COUNTS TOWARDS GRADE Predict and calculate the effect of volume...
Close Problem Tutored Practice Problem 15.4.2 COUNTS TOWARDS GRADE Predict and calculate the effect of volume change on an equilibrium system. Consider the equilibrium between COBr2, CO and Br2. COBr2(g) PCO(g) + Brz(9) K = 0.254 at 350 K The reaction is allowed to reach equilibrium in a 8.60-L flask. At equilibrium, [COBr2] = 0.288 M, [CO] = 0.270 M and [Brz] = 0.270 M. (a) The equilibrium mixture is transferred to a 17.2-L flask. In which direction will the...
Tutored Practice Problem 19.3.5 COUNTS TOWARDS GRADE Calculate temperature at which AGº changes sign. Close Calculate...
Tutored Practice Problem 19.3.5 COUNTS TOWARDS GRADE Calculate temperature at which AGº changes sign. Close Calculate the temperature (in kelvins) at which the sign of AGº changes from positive to negative for the reaction below. This corresponds to the temperature at which K<1 changes to K > 1. Assume that AH and AS are constant and do not change with temperature, Fe304(8) + 4H2(e) 3Fe(8) + 4H2O(g) AH° - 151 kJ/mol and AS - 169 J/K: mol Check & Submit...
Tutored Practice Problem 15.4.2 COUNTS TOWARDS GRADE Close Problem Predict and calculate the effect of volume change on...
Tutored Practice Problem 15.4.2 COUNTS TOWARDS GRADE Close Problem Predict and calculate the effect of volume change on an equilibrium system. Consider the equilibrium between COBr2, CO and Br2 COBr2(g) CO(g)+ Br2(g) K 0.338 at 354 K The reaction is allowed to reach equilibrium in a 5.30-L flask. At equilibrium, [COBr2] 0.295 M and [Br2] = 0.257 M, [CO] 0.295 M. (a) The equilibrium mixture is transferred to a 10.6-L flask. In which direction will the reaction proceed to reach...
Close Problem Tutored Practice Problem 17.3.1 COUNTS TOWARDS GRADE Calculate pH for a strong acid/strong base...
Close Problem Tutored Practice Problem 17.3.1 COUNTS TOWARDS GRADE Calculate pH for a strong acid/strong base titration. Determine the pH during the titration of 29.5 mL of 0.237 M HCIO, by 0.237 M KOH at the following points: (a) Before the addition of any KOH (b) After the addition of 14.8 mL of KOH (c) At the equivalence point (d) After adding 38.1 mL of KOH кон Check & Submit Answer Show Approach
Close Problem Tutored Practice Problem 4.3.2 COUNTS TOWARDS GRADE Write net ionic equations for precipitation reactions....
Close Problem Tutored Practice Problem 4.3.2 COUNTS TOWARDS GRADE Write net ionic equations for precipitation reactions. Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of barium acetate and magnesium sulfate are combined. Use the pull-down boxes to specify states such as (aq) or(s). If a box is not needed leave it blank. Check & Submit Answer Show Approach
Tutored Practice Problem 14.4.1 COUNTS TOWARDS GRADE Use the integrated rate law to calculate reactant concentration at time t The decomposition of dinitrogen pentoxide in carbon tetrachloride solution at 30 °C Close Problem is first order in N205 with a rate constant of 4.10x103 min-1, If an experiment is performed in which the initial concentration of N205 is 1.14 M, what is the concentration of N205 after 505 minutes have passed? Check & Submit Answer Show Approach
Tutored Practice Problem 19.3.4 COUNTS TOWARDS GRADE Calculate the equilibrium constant from the standard free energy change. Close Pr Using standard thermodynamic data (linked), calculate the equilibrium constant at 298.15 K for the following reaction. N2(g) + O2(g) +2NO(g) K- Check & Submit Answer Show Approach
Close Problem Tutored Practice Problem 15.3.2 COUNTS TOWARDS GRADE Use an /CE table to calculate K A mixture of CO and Cl, is allowed to react at 585 K CO(g) + Cl2(g) cOC2(g) The initial concentration of the reactants are [cO] = 0.3050 M and [Cl2] = 0.3390 M. After the system reaches equilibrium, it is found that the Ch concentration has decreased to 0.0659 M. Based on these data, determine the value of the equilibrium constant, K, for this...
Close Problem Tutored Practice Problem 19.3.1 COUNTS TOWARDS GRADE Calculate standard free energy change using AH and So values. Consider the reaction CH4(g) + H2O(g)—_>3H2(g) + CO(g) Calculate the standard free energy change for this reaction at 25°C from AHºrn and AS rxn: AGºrxn = kJ/mol Check & Submit Answer Show Approach
Tutored Practice Problem 18.1.3 cOUNTS TOWARDS GRADE Use equilibrium ion concentration to calculate Ksp Close Problem The Pb2+ concentration in a saturated solution of lead chloride is measured and found to be 1.65x102 M. Use this information to calculate a K,p value for lead chloride. Ksp Check & Submit Answer Show Approach
Close Problem Tutored Practice Problem 15.4.2 COUNTS TOWARDS GRADE Predict and calculate the effect of volume change on an equilibrium system. Consider the equilibrium between COBr2, CO and Br2. COBr2(g) PCO(g) + Brz(9) K = 0.254 at 350 K The reaction is allowed to reach equilibrium in a 8.60-L flask. At equilibrium, [COBr2] = 0.288 M, [CO] = 0.270 M and [Brz] = 0.270 M. (a) The equilibrium mixture is transferred to a 17.2-L flask. In which direction will the...
Tutored Practice Problem 19.3.5 COUNTS TOWARDS GRADE Calculate temperature at which AGº changes sign. Close Calculate the temperature (in kelvins) at which the sign of AGº changes from positive to negative for the reaction below. This corresponds to the temperature at which K<1 changes to K > 1. Assume that AH and AS are constant and do not change with temperature, Fe304(8) + 4H2(e) 3Fe(8) + 4H2O(g) AH° - 151 kJ/mol and AS - 169 J/K: mol Check & Submit...
Tutored Practice Problem 15.4.2 COUNTS TOWARDS GRADE Close Problem Predict and calculate the effect of volume change on an equilibrium system. Consider the equilibrium between COBr2, CO and Br2 COBr2(g) CO(g)+ Br2(g) K 0.338 at 354 K The reaction is allowed to reach equilibrium in a 5.30-L flask. At equilibrium, [COBr2] 0.295 M and [Br2] = 0.257 M, [CO] 0.295 M. (a) The equilibrium mixture is transferred to a 10.6-L flask. In which direction will the reaction proceed to reach...
Close Problem Tutored Practice Problem 17.3.1 COUNTS TOWARDS GRADE Calculate pH for a strong acid/strong base titration. Determine the pH during the titration of 29.5 mL of 0.237 M HCIO, by 0.237 M KOH at the following points: (a) Before the addition of any KOH (b) After the addition of 14.8 mL of KOH (c) At the equivalence point (d) After adding 38.1 mL of KOH кон Check & Submit Answer Show Approach
Close Problem Tutored Practice Problem 4.3.2 COUNTS TOWARDS GRADE Write net ionic equations for precipitation reactions. Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of barium acetate and magnesium sulfate are combined. Use the pull-down boxes to specify states such as (aq) or(s). If a box is not needed leave it blank. Check & Submit Answer Show Approach
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