Dissolving 2.97 g of CaCl2(s) in 143.8 g of water in a calorimeter at 22.3 °C causes the temperature to rise to 25.9 °C. What is the change in enthalpy for this dissolution (in J), assuming the specific heat of the resulting solution is 4.184 J/g °C?

Q: The mixture of 44.0 mL of 0.280 M barium hydroxide and 44.0 mL of 0.300 M hydrobromic acid results…

A: No of moles of Ba(OH)2=  0.280 M × 0.044 L =0.01232 mol No of moles of HBr = 0.300 × 0.044 L =0.0132…

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Q: Dissolving 3.0 g of CaCl2(s) in 150.0 g of water in a calorimeter (as shown) at 22.4 °C causes the…

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Q: In a coffee cup calorimeter, a student places 0.470 g of calcium, followed by addition of 50.0 mL of…

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Q: Calculate AH dissolution, the enthalpy for the dissolution process in water, per mole of NaOH.…

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Q: When 1.18 g of KClO3 was added to 149.35 g of water in a calorimeter, the  temperature dropped by…

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Q: student determines the heat of dissolution of solid cesium bromide using a coffee-cup calorimeter of…

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Q: Two solids, 5.00 g of NaOH and 4.20 g of KOH, are added to 150 mL of water at 23 °C in a…

A: Given,  ∆Hsoln, NaOH  = - 44.3 kJ/mol  ∆Hsoln, KOH = - 56.0 kJ/mol  NaOH added = 5.00 g  KOH added =…

Q: When 0.615 g of sodium metal is added to an excess of hydrochloric acid, 6390 J of heat are…

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A:

Q: When 2.07 g of NaCl are added to 114 g of water in a constant pressure calorimeter, the temperature…

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Q: The enthalpy of methanol, CH 3OH (MW=32.0 g/mol) is -7.26 x 10 2 kJ/mol. Calculate the grams of…

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Q: 25.0 mL of 5 mol/L HCl is added to 30.0 mL of 1.50 mol/L NaOH. The temperature in the calorimeter…

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Q: A calorimeter contains 24.0 mL of water at 11.0 °C. When 2.20 g of X (a substance with a molar mass…

A:

Q: A student determines the heat of dissolution of solid cesium perchlorate using a coffee-cup…

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

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Q: A chemist dissolved an 11.4-g sample of KOH in 100.0 grams of water in a coffee cup calorimeter.…

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Q: A generic solid, X, has a molar mass of 83.3 g/mol. In a constant-pressure calorimeter, 17.2 g of X…

A:

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Q: A student determines the heat of dissolution of solid potassium bromide using a coffee-cup…

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Q: When a 6.00 g sample of KSCN is dissolved in water in a calorimeter that has a total heat capacity…

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