Suppose 50.0 mL of 0.50 M HCl and 50.0 mL of 0.50 M NaOH, both initially at 21.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 24.4°C. Assuming that the solutions have the same heat capacity as pure water, compute the heat released (in kJ).

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Q: In a constant-pressure calorimeter, 70.0 mL of 0.340 M Ba(OH), was added to 70.0 mL of 0.680 M HCI.…

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Q: A calorimeter contains 18.0 mL of water at 14.0 °C. When 1.30 g of X (a substance with a molar mass…

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Q: A calorimeter contains 34.0 mL of water at 14.0 °C . When 2.30 g of X (a substance with a molar mass…

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Q: When 50.0 mL of 1.27 M of HCI(aq) is combined with 50.0 mL of 1.32 M of NaOH(aq) in a coffee-cup…

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Q: When 50.0 g of an aqueous solution of reagent 1 at 24.1oC is added to 100.0 g of of an aqueous…

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Q: A calorimeter contains 20.0 mL of water at 14.5 ∘C . When 1.20 g of X (a substance with a molar mass…

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Q: The

A: We will calculate ∆H

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Q: 5. 25 cm3 of 1.0 M hydrochloric acid and 25 cm3 of 1.0 M sodium hydroxide solution both at initial…

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A: X(s) + H2O(l) --> X(aqm = 1.30 gM = 82

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Q: A 50.0 mL solution of 1.2 M HCl at 24.1oC is mixed with 50.0 mL of 1.3 M NaOH, also at 24.1oC, in a…

A: HCl = 50.0 mL x 1.2 M = 60 mmol = 0.060 mol NaOH = 50.0 m X 1.3 M = 65 mmol = 0.065 mol here HCl and…

Q: In a constant-pressure calorimeter, 50.0 mL of 0.340 M Ba(OH), was added to 50.0 mL of 0.680 M HCI.…

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Q: A calorimeter contains 16.0 mL of water at 14.5 °C. When 2.20 g of X (a substance with molar mass of…

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Q: A calorimeter contains 30.0 mL of water at 14.0 °C When 1.70 g of X (a substance with a molar mass…

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Q: A 25.0 mL portion of dilute HCl (aq) is combined with a 25.0 mL portion of dilute NaOH in a…

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Q: When 60.0 mL of a 0.400 M solution of HNO3 (aq) is combined with 60.0 mL of a 0.400 M solution of…

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Q: A calorimeter contains 35.0 mL of water at 13.0 °C. When 1.80 g of X (a substance with a molar mass…

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Q: When 50.0 mL of 1.24 M of HCI(aq) is combined with 50.0 mL of 1.32 M of NaOH(aq) in a coffee-cup…

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Q: 27. The addition of 3.15 g of Ba(OH)2·8H2O to a solution of 1.52 g of NH4SCN in 100 g of water in a…

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Q: In a constant‑pressure calorimeter, 55.0 mL of 0.340 M Ba(OH)2 was added to 55.0 mL of 0.680 HCl.…

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Q: A student transferred 50.0 ml 1.00 M HCl into a coffee-cup calorimeter, which had a temperature of…

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Q: The enthalpy changes when a strong acid is neutralized by strong base is -56.1 kJ/mol. If 135 mL of…

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Q: A quantity of 50.0 mL of 0.200 M Ba(OH)2 is mixed with 50.0 mL of 0.400 M HNO3 in a…

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Q: A 25.0 mL portion of dilute HCl (aq) is combined with a 25.0 mL portion of dilute NaOH in a…

A: Interpretation -  To determine the qrxn in J when a 25.0 mL portion of dilute HCl (aq) is combined…