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13.16 short Answer A) 0.236
13.16 short Answer B)90.8 g i2/100g hexane
13.8 short Answer
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Q4. (3 marks) Estimate the freezing point of 150 cm of water to which 13.0 g...
Q4. (3 marks) Estimate the freezing point of 150 cm of water to which 13.0 g of sucrose (molar mass = 342.29 g/mol) has been added. Kf of water is 1.86 K kg mol-? Q5. (5 marks) The ideal solubility of solute B at temperature T is given by AfusH1 In Xg RT Where Arush is the enthalpy of fusion of solute and Te is the freezing point of solute. Estimate the ideal solubility of lead in bismuth (as kg...
5 g of molten NaCl is at melting temp. The salt is added to 25 mL...
5 g of molten NaCl is at melting temp. The salt is added to 25 mL of water at 25 C in a coffee cup calorimeter. The salt becomes solid and the temp of water increases to 47.9C. a.) calculate amount of heat transferred in Joules b.) is the freezing of salt endothermic or exothermic? c.) calculate the moles enthalpy of fusion for NaCl in kJ/mol
1. At 1 atm, how much energy is required to heat 35.0 g H2O(s) at −10.0...
1. At 1 atm, how much energy is required to heat 35.0 g H2O(s) at −10.0 ∘C to H2O(g) at 137.0 ∘C? Use the heat transfer constants found in this Quantity per gram per mole Enthalpy of fusion 333.6 J/g 6010. J/mol Enthalpy of vaporization 2257 J/g 40660 J/mol Specific heat of solid H2O (ice) 2.087 J/(g·°C) * 37.60 J/(mol·°C) * Specific heat of liquid H2O (water) 4.184 J/(g·°C) * 75.37 J/(mol·°C) * Specific heat of gaseous H2O (steam) 2.000...
Please answer clearly & correctly. Selected properties of water Heat of fusion at the normal melting...
Please answer clearly & correctly.
Selected properties of water Heat of fusion at the normal melting point: The heat of vaporization at the normal boiling point: Liquid water: 333.55 J/g 2257 J/g Cp = 1.00 cal/(g. K) = 4.184 J/(g. K) or 75.33 J/(mole. K) ρ= 1 .000 g/cm3 Cp = 2.05 J/(g. K) or 38, l J/(mole K) ρ=0.917 g/cm3 Water ice at 0°C and 1 atm Heat capacity of water vapor, H20(g) Cvm 28.03 J/(mol-K).
14) Consider the following compounds. (1) n-hexane, CH3CH CH2CH2CH CHs, molar mass 86.18 g/mole (II) n-pentanal,...
14) Consider the following compounds. (1) n-hexane, CH3CH CH2CH2CH CHs, molar mass 86.18 g/mole (II) n-pentanal, CH3CH2CH2CH2CHO, molar mass 87.15 g/mole (III) i-hexane, CHsCH2CH2CH(CH3)2, molar mass = 86.18 g/mole (IV) sodium acetate, CH3 CO2Na, molar mass 82.03 g/mole (V) butanoic acid, CH3CH2CH2CO2H, molar mass 88.11 g/mole (VI) butane-diol, HOCH2CH:CH2CH2OH, molar mass = 92.14 g/mole (VIl) 2,2-dimethylbutane, CHaCH2C(CHaa, molar mass 86.18 g/mole (VII) Ethyl methyl ether, CHaCH2OCH2CH2CHa, molar mass 89.16 g/mole (IX) n-pentanol, C a) Arrange them in order of increasing...
in thermodynamics, how do i answer 2.7? 2.7 Calculate the entropy changes of the system and...
in thermodynamics, how do i answer 2.7?
2.7 Calculate the entropy changes of the system and surroundings for the case of isothermal freezing of one mole of supercooled liquid silver at 850°c, when the surroundings are also at the same temperature 961 C (1234 K). Given: Melting point of silver 2,690 cal/mole (11,255 J/mol) Heat of fusion of silver at 961°c 5.092.04 x 103 T ca1/deg/mole (21.30+8.54x10 J/K/mol) Cp,<Ag> 7.30 cal/deg/mole (30.54 J/K/mol) CP(Ag)
1) Please could you help me answering these questions step by step Determine the solubility (M)...
1) Please could you help me answering these questions step by step Determine the solubility (M) of oxygen in water at 25 ° C and at a partial pressure of 190 Torr. KO2 = 3.30x107 Torr. Tip: Approximate the number of total moles to the number of moles of water. Answer = 3.2 x 10-4 M 2) Calculate the ideal solubility in molar fraction of benzoic acid at 25 ° C. the melting point of benzoic acid is 122 °...
Above is the data source (CH,N,O) When 59.1 g of urea are dissolved in 1100. g...
Above is the data source
(CH,N,O) When 59.1 g of urea are dissolved in 1100. g of a certain mystery liquid X, the freezing point of the solution is 3.10 °C less than the freezing point of pureX of X to produce the same depression in freezing point. The van't Hoff factor Calculate the mass of potassium bromide that must be dissolved in the same mass i 1.70 for potassium bromide in X Be sure your answer has a unit...
Please do not copy the answer from others! Thank you! Calculate the change in entropy when...
Please do not copy the answer from others! Thank you!
Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol-1 k-and 31.75 J mol-1 k1, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 Jg7....
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypotheti...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
Q4. (3 marks) Estimate the freezing point of 150 cm of water to which 13.0 g of sucrose (molar mass = 342.29 g/mol) has been added. Kf of water is 1.86 K kg mol-? Q5. (5 marks) The ideal solubility of solute B at temperature T is given by AfusH1 In Xg RT Where Arush is the enthalpy of fusion of solute and Te is the freezing point of solute. Estimate the ideal solubility of lead in bismuth (as kg...
Please answer clearly & correctly.
Selected properties of water Heat of fusion at the normal melting point: The heat of vaporization at the normal boiling point: Liquid water: 333.55 J/g 2257 J/g Cp = 1.00 cal/(g. K) = 4.184 J/(g. K) or 75.33 J/(mole. K) ρ= 1 .000 g/cm3 Cp = 2.05 J/(g. K) or 38, l J/(mole K) ρ=0.917 g/cm3 Water ice at 0°C and 1 atm Heat capacity of water vapor, H20(g) Cvm 28.03 J/(mol-K).
14) Consider the following compounds. (1) n-hexane, CH3CH CH2CH2CH CHs, molar mass 86.18 g/mole (II) n-pentanal, CH3CH2CH2CH2CHO, molar mass 87.15 g/mole (III) i-hexane, CHsCH2CH2CH(CH3)2, molar mass = 86.18 g/mole (IV) sodium acetate, CH3 CO2Na, molar mass 82.03 g/mole (V) butanoic acid, CH3CH2CH2CO2H, molar mass 88.11 g/mole (VI) butane-diol, HOCH2CH:CH2CH2OH, molar mass = 92.14 g/mole (VIl) 2,2-dimethylbutane, CHaCH2C(CHaa, molar mass 86.18 g/mole (VII) Ethyl methyl ether, CHaCH2OCH2CH2CHa, molar mass 89.16 g/mole (IX) n-pentanol, C a) Arrange them in order of increasing...
in thermodynamics, how do i answer 2.7?
2.7 Calculate the entropy changes of the system and surroundings for the case of isothermal freezing of one mole of supercooled liquid silver at 850°c, when the surroundings are also at the same temperature 961 C (1234 K). Given: Melting point of silver 2,690 cal/mole (11,255 J/mol) Heat of fusion of silver at 961°c 5.092.04 x 103 T ca1/deg/mole (21.30+8.54x10 J/K/mol) Cp,<Ag> 7.30 cal/deg/mole (30.54 J/K/mol) CP(Ag)
Above is the data source
(CH,N,O) When 59.1 g of urea are dissolved in 1100. g of a certain mystery liquid X, the freezing point of the solution is 3.10 °C less than the freezing point of pureX of X to produce the same depression in freezing point. The van't Hoff factor Calculate the mass of potassium bromide that must be dissolved in the same mass i 1.70 for potassium bromide in X Be sure your answer has a unit...
Please do not copy the answer from others! Thank you!
Calculate the change in entropy when one mole of metallic aluminum is heated at one bar pressure from an initial temperature of 25 °C to a final temperature of 750 °C. The molar heat capacities of solid and liquid aluminum at one bar pressure are 29.2 J mol-1 k-and 31.75 J mol-1 k1, respectively. The specific enthalpy of fusion of aluminum at its melting point (660.46 °C) is 396.57 Jg7....
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