✓-aGasoline vaporizes in the carburetor of an automobile engine2Hg (1) + O₂ (g) --> - 2HgO (s)seperating solute particles throughout a solventSO₂(g) + CaO(s) -----> CaSO3(s)freezing water to form iceBaF2 (s)--> Ba2+ (aq) + 2F (aq)PCL3(g) + Cl₂(g) ----> PCL5 (g)melting ice to form waterRaindrops form in a cloud| C₂H4(g) + H₂(g) ---> - C₂H6 (g)Ni(s) + 2 HCl(aq) -----> H₂(g) + NiCl₂(aq)Sugar dissolves in coffeeCO₂(g) + H₂O(1) ----> H₂CO3(aq)2NO₂ (g) -dissolution of solid KCl in watermixing of two gases into one containerboiling water to form steamFrost forms on the windshield of your car--> N₂O4 (g)CaO(s) + 2 HCl(g) ---> CaCl₂(s) + H₂O(l)Moisture condenses on the outside of a cold glassir is pumped into a tireSub questiona. As<0b. AS>0

Given data:Different types of processes are givenMatch each reaction to the change in…

Gasoline vaporizes in the carburetor of an automobile engine 2Hg (1) + O₂ (g) --> 2HgO (s) seperating solute particles throughout a solvent SO₂(g) + CaO(s) -----> CaSO3(s) freezing water to form ice BaF₂ (s)--> Ba2+ (aq) + 2F (aq) PCl3(g) + Cl₂(g) ----> PCL5 (g) melting ice to form water Raindrops form in a cloud C₂H4(g) + H₂(g) ---> C₂H6(g) Ni(s) + 2 HCl(aq) -------> H₂(g) + Sugar dissolves in coffee CO₂(g) + H₂O(l) ----> H₂CO3(aq) 2NO₂ (g) --> N₂O4 (g) dissolution of solid KCl in water mixing of two gases into one container boiling water to form steam Frost forms on the windshield of your car CaO(s) + 2 HCl(g)---> CaCl₂ (s) + H₂O(l) Moisture condenses on the outside of a cold glass ir is pumped into a tire NiCl₂(aq) a. As<0 b. AS>0

Gasoline vaporizes in the carburetor of an automobile engine 2Hg (1) + O₂ (g) --> 2HgO (s) seperating solute particles throughout a solvent SO₂(g) + CaO(s) -----> CaSO3(s) freezing water to form ice BaF₂ (s)--> Ba2+ (aq) + 2F (aq) PCl3(g) + Cl₂(g) ----> PCL5 (g) melting ice to form water Raindrops form in a cloud C₂H4(g) + H₂(g) ---> C₂H6(g) Ni(s) + 2 HCl(aq) -------> H₂(g) + Sugar dissolves in coffee CO₂(g) + H₂O(l) ----> H₂CO3(aq) 2NO₂ (g) --> N₂O4 (g) dissolution of solid KCl in water mixing of two gases into one container boiling water to form steam Frost forms on the windshield of your car CaO(s) + 2 HCl(g)---> CaCl₂ (s) + H₂O(l) Moisture condenses on the outside of a cold glass ir is pumped into a tire NiCl₂(aq) a. As<0 b. AS>0

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter24: Introduction To Spectrochemical Methods

Section: Chapter Questions

Problem 24.4QAP

See similar textbooks

Similar questions

What is AG for the decomposition of CaCO3 at 298 K and a partial pressure of CO2 of 4.00x10-4 bar? CaCO3(s) → CaO(s) + CO2(g) AGrxn (298 K, Pco2 = 0.400 mbar) = ??? CO2(g) Compound AG°; (kJ mol·1) CACO3(s) СаО(s) -1129 -604 -394
The emission of NO, by fossil fuel combustion can be prevented by injecting gaseous urea into the combustion mixture. The urea reduces NO (which oxidizes in air to form NO2) according to the reaction: 2 CO(NH;)»(3) + 4 NO(3) + O2(8) 4 Na(8) + 2 CO;(g) + 4 H¿O(g) Suppose that the exhaust stream of an automobile has a flow rate of 2.55 L/s at 655 Kand contains a partial pressure of NO of 12.4 torr. What total mass of urea is necessary to react complete- ly with the NO formed during 8.0 hours of driving?
C6H12O6(aq) + 6O2(g) 6CO2(g) + 6H2O(l)ΔH = –2802.7 kJ mol –1a) Write an expression for the equilibrium constant for this reaction.b) At equilibrium, the concentration of the reactants and products are determined as [CO2] = 0.30 M, [O2] = 0.040 M and [C6H12O6] = 0.065 M. Determine the value of the equilibrium constant (Kc) and predict the whether the products or reactants will be favoured at equilibrium.c) Given that the concentrations of the reactants and products at a particular time are [CO2] = 0.65 M, [O2] = 0.020 M and [C6H12O6] = 0.055 M, determine the reaction quotient (Qc). Compare the Kc and Qc values and predict the favoured direction of the reaction.d) Explain the effect on equilibrium of:i) Increasing temperatureii) Increasing pressureiii) Decreasing the concentration of oxygeniv) Increasing the concentration of carbon dioxidev) Adding a catalyst
b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction Co(g) +2H2(g) → CH;OH (g) At 298.15 K, AH?.co )= -26.41 kcal/mol, AH?.CH,OH()= -48.08 kcal/mol, AG.co )= -32.8079 kcal/mol, AG.CH,OH(@)= -38.69 kcal/mol, The standard heat capacity of various components is given by. CS = a + bT + cT2 + dT³, where C is in cal/mol-K and T is in K |Component b x10 e x105 d x10° a -0.291 CH3OH CO 4.55 2.186 -1.92 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.2079
Addition of Silver nitrate water solution to weak solution of Potassium chromate leads to precipitation in case of: c'(Ag')-C(CrO,²) > K°(Ag,CrO4) C(AgNO;) > C(K,CrO4) C(Ag') = C(CrO,) C(Ag')·C(CrO,²) = K,°(Ag,CrO4)
b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction СO(g) +2H2(g) — CHОН (g) At 298.15 K, AH.co (0)= -26.41 kcal/mol, AH AG.co (9)= -32.8079 kcal/mol, AG cH,oh(9)= -38.69 kcal/mol, °.CH20H(9)= -48.08 kcal/mol, The standard heat capacity of various components is given by, CO = a + bT + cT² + dT³, where C, is in cal/mol-K and T is in K b x10² с х105 d x10° Соmponent CH3OH а 4.55 2.186 -0.291 -1.92 CO 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.2079
The Henry’s law constant for CO2 in water at 25 °C is3.1x 10-2 M atm-1. (a) What is the solubility of CO2 inwater at this temperature if the solution is in contact withair at normal atmospheric pressure? (b) Assume that all ofthis CO2 is in the form of H2CO3 produced by the reactionbetween CO2 and H2O:CO2(aq) + H2O(l)------>H2CO3(aq)What is the pH of this solution?
7. The solubility, C, of sucrose in water, expressed as grams of sucrose per 100 g of solvent, is given as below t/°C C/g 0 179.2 10 20 203.9 190.5 30 219.5 [ΔΗ (a) Draw an appropriate graph to determine the molar enthalpy of solution of sucrose in the temperature range 0 to 40°C. (b) 50mL of saturated solution of benzoic acid at 25°C requires 12.8 mL of 0.05 M NaOH to completely neutralize. What is the solubility of benzoic acid in g/L water at 25°C. so ln,m 40 238.1 = 4.96 kJ/mol, Cbenzoic acid = 1.56g/L]
Addition of Bismuth nitrate water solution to weak solution of Potassium iodide leads to precipitation in case of: C (Bi ³*)· C'(J)>K, (Bi J;) C(Bỉ")' ·C (J)>K,°( BiJ;) - 3+3 C( Bi )·C(J) = K,°( BiJ;) C (Bỉ*)-C*(J)
Given the following standard enthalpies of hydration; Mg 2 + (g) + (ag) Mg2+(aq); A110 - 1920KJ C-n (g) + (aq) CT (a q) ; All 0 - 364 KJ- and using the value of AHO for the reaction a!ready given; calculate the standard enthalpy of solution of magnesium chloride.
) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction Co(g) +2H2(g) → CH;OH (g) At 298.15 K, AH?,co (»= -26.41 kcal/mol, AH9,cH,0H(0)= -48.08 kcal/mol, AG,co ()= -32.8079 kcal/mol, AG?.cH,oH()= -38.69 kcal/mol, The standard heat capacity of various components is given by, C = a + bT + cT² + dT³, where C§ is in cal/mol-K and T is in K |Component CH;OH CO b x10 с х105 -0.291 0.1283 a d ×10" 4.55 6.726 2.186 0.04 -0.0457 -1.92 -0.5307 -0.2079 6.952 0.09563
The sealed containers of fizzy drinks contain dissolved CO2. This dissolved CO2 is in equilibrium with a small quantity of gaseous CO2 at the top of the container. (a) The partial pressure of CO2 gas in a 250 cm3 can of fizzy drink is 3.0 atm at 25 0C. What is the concentration of CO2 in the fizzy drink? (b) If the can contain only the mass of CO2 1.09g as a gas, calculate the pressure in the can when it is stored at 25 0C. (c) The maximum pressure that a can of fizzy drink can withstand is 7 atm. Using the graph below, determine the maximum temperature at which a can, can be stored safely.