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Predict the sign of the entropy change in the system for each of the following processes, and explain your answers.
1) AgI precipitates from a solution containing Ag+ and I- ions.
2) Gaseous CO2 bubbles out of a carbonated beverage.
what is the voltage after the addition of the following volume of NaI solution? The reduction potential for the saturated calomel electrode is E = 0.241 V. The standard reduction potential for the reaction is E0 = 0.79993 V.
Organic Chemistry-In the mass spectrum of butylbenzene, the base peak occurs at m/z
Determine the freezing point of an aqueous solution that is 1,7 m in ethylene glycol. The freezing point depression constant for water is 1.86°C/m The freezing point of pure water is 0.0°C.
What is a trans fat? Why would partially hydrogenated oils contain higher amounts of trans fats than natural fats and oils? Why are saturated and trans fats considered a risk factor for cardiovascular disease?
An sulphuric acid solution has a concentration 3.75 M and a density of 1.230 g/cm3. Determine the molality of the solution.
A 35.00 mL sample of HNO3 solution is neutralized by exactly 42.63 mL of 0.4153 M KOH. What is the molarity of the HNO3 solution?
The following questions are based on the following reaction, in which Cl has a -1 oxidation number in MnCl2. 4HCl + MnO2 --> Cl2 + 2H2O + MnCl2. What is the oxidizing agent?
What is the equilibrium concentration of hydronium ion in a solution that is 0.0877 M in HX and 0.240 M in X1- ion?
calculate the pH of the 1 L solution of 0.25 M TRIS plus the addition of 0.05 M HCL. Show how many moles of TRIS and TRIS HCL are present after the addition of the HCL. Use the Henderson Hasselbalch equation to calculate the pH?
Write balanced chemical equations and net ionic equations of KOH reacting with the following compounds (a) (NH4)2SO4, the reaction mixture is heated
The flourocarbon compound C2Cl3F3 has a normal oiling point of 47.6 degrees C. The specific heat of C2Cl3F3(liquid) and C2Cl3F3(gas) are 0.91 J/gK and 0.67J/gK respectively. The heat of vaporization for he compound is 27.49 kJ/mol.
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 degrees C. At what temperature does benzene boil when the external pressure is 490?
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