An ionic compound has a very negative ΔHsoln in water.(a) Would you expect it to be very soluble or nearly insolublein water? (b) Which term would you expect to be thelargest negative number: ΔHsolvent, ΔHsolute, or ΔHmix?

Q: State whether the entropy of the system increases or decreases in each of the following…

A: More is the disorderness present in the atoms of a substance more will be its entropy.

Q: What is the heat of dissolution? Write the expression that gives the change of molar heat of…

A: Solution :     Heat gained or lost by the system is calculated by the amount of heat transfer during…

Q: When 8.6 grams of a certain compound is dissolved in 78 grams of water in a calorimeter, the…

A:

Q: A 262-mL sample of a sugar solution containing 1.22 g of the sugar has an osmotic pressure of 30.3…

A:

Q: 7) ) Use the following data to calculate the enthalpy of solution of lithium chloride. chloride =…

A: Hf for solid lithium chloride is given by the process  Li+(g) + Cl-(g) →LiCl (s) The overall process…

Q: 5.57 grams of urea were added to 57.13 mL of water at an initial temperature of 18.09ºC. After the…

A: Interpretation - To determine the total mass of solution when 5.57 grams of urea were added to 57.13…

Q: (b) What is the value of Keq for the reaction 2 NO(g) + Cl2(g)  2 NOCl(g)? Keq =  . (c) What is…

A: Keq is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: A 0.100-L solution is made by dissolving 0.441 g of CaCl21s2 in water. The enthalpy of solution for…

A: Using delta H, determine the heat released by dissolving the given moles of CaCl2. The moles of…

Q: The process in which an organic acidand an alcohol react to form an ester and water is knownas…

A: According to the law of the conservation of the mass, the mass neither is created nor be destroyed,…

Q: You have a flask weighing 121.214 g. To this flask, you added 25.00 mL KCl(aq) solution. You weigh…

A: molality is a method of expressing concentration of the solution. it is defined as number of moles…

Q: Calculate the ΔH for the reaction. Show the complete and step by step solution. NO(g) + O(g) -> NO2…

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Q: 6.41 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A:

Q: 2.503 g of ammonium chloride NH4CI are added to a calorimeter cup containing 25.30 g of water at…

A: ∆Hdissolution = -qsolution Heat loss by the solution,  q = m. c . ∆T m is the mass of water c is…

Q: Calculate the ΔMG when mixing 2 mols H2 at 25ºC and 4 mols N2 at 25 ºC , being both of them at the…

A: For an ideal gas mixture,ΔMG = -T ΔMSwhere ΔMS = -nR (x1 lnx1 + x2 lnx2)  x1 and x2 are mole…

Q: 10.01 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Given data: 10.01 g of MgSO₄ 100.0 mL of water density of the water is 1.00 g/mL specific heat of…

Q: was made by dissolving 479.32 g or aluminum AIC13) in enough water to make 500.0 solution. The…

A:

Q: 7.46 g of ammonium persulfate is dissolved in 112.0 mL of water. Initially the temperature of the…

A:

Q: (a) Use the following data to calculate the combined heat ofhydration for the ions in sodium acetate…

A: Given that, ΔH(lattice)=763 kJ/mol ΔH(soln)=17.3 kJ/mol To find: Combined heat of hydration for…

Q: 9.71 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Here we are required to  find the Enthalpy of dissolution of MgSO4.

Q: 10.71 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: density is defined as the mass of an object upon the volume of spaced occupied density d = mass of…

Q: 3.61 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A:

Q: Consider a mixture of hexane and heptane as an ideal solution. In what proportion by mass should…

A: ∆mixS is the entropy of mixing which is defined as the increase in entropy when two or more separate…

Q: When 4 grams of a certain compound is dissolved in 61 grams of water in a calorimeter, the…

A:

Q: Calculate the enthalpy change of the freezing of 287 g of water.

A: Determination of no. of mol of H2O: n=wM=287 g18.01528 g/mol=15.931 mol

Q: 5.21 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: In order to increase one unit temperature of a substance, the amount of energy supplied in the form…

Q: 5.21 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: The enthalpy change during dissolution is equal to the heat absorbed by the solution.…

Q: A constant pressure calorimeter contains 286 g of water at 20.0 °C. A 13.41 g of substance X (molar…

A: The heat released q = m*s*∆T where m = mass of water, s = specific heat, ∆T = temperature change

Q: 4.06 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Enthalpy of reaction is determine by change in enthalpy of product and reactant. Enthalpy of…

Q: When 20 grams of potassium chlorate, KCIO3, is dissolved in 100 grams of water at 80 °C, the…

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Q: 5.61 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: To increase one unit of temperature of a subsyance. The amount of energy supplied in the form of…

Q: 50.0 mL of 1.00 M HCl is mixed with 50.0 mL of 0.95 M KOH in a calorimeter with a caloriemeter…

A: Given: 50 ml of 1 M HCl. 50 ml of 0.95 M KOH Calorimeter constant: 17.3 J/C Specific heat capacity:…