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PROBLEM-SOLVING CLASS ACTIVITY 9 Suppose 33 mL of 1.20 M HCI is added to 42 mL...
please help? AH and Calorimetry: Suppose 33mL of 1.20M HCl is added to 42mL of a...
please help?
AH and Calorimetry: Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess sodium hydroxide in a coffee-cup calorimeter. The solution temperature, originally at 25.0°C, rises to 31.8°C. COMPARE ANSWER WITH PROBLEM #9. 2pts a Provide a thermochemical equation, including AH in kJ. (include sign) b. What is the energy (AH) evolved in kJ per mole of HCI? (include sign) For simplicity, assume the heat capacity and the density of the final solution are...
Vas 25.0°C. rises to AH and Calorimetry: 8. Suppose 33mL of 1.20M HCl is added to...
Vas 25.0°C. rises to AH and Calorimetry: 8. Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess sodium nydroxide in a coffee-cup calorimeter. The solution temperature, originally at 25.0°C, rises to 31.8°C. COMPARE ANSWER WITH PROBLEM #9. 2pts a. Provide a thermochemical equation, including AH in kJ. (include sign) b. What is the energy (AH) evolved in kJ per mole of HCI? include sign) For simplicity, assume the heat capacity and the density of the...
Page 36 When 50.0 mL of 1.00 M HCI(aq) and 50.0 mL of 1.00 M NaOH(aq),...
Page 36 When 50.0 mL of 1.00 M HCI(aq) and 50.0 mL of 1.00 M NaOH(aq), both at 22.0 °C, are added to a coffee cup calorimeter, the temperature of the mixture reaches a maximum of 28.9 C. What is the approximate amount of heat produced by this reaction? Specific heat of water is 4.184 J/g C HCl(aq) + NaOH(aq) → Nacl(aq) + H2O() The heat given off by the reaction is equal to that taken in by the solution....
A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of...
A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HCl in a coffee cup calorimeter. If both solutions were initially at 35.0°C and the temperature of the resulting solution was recorded as 37.0°C, determine the experimental AHxt (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HCI. Assume that no heat is lost to the calorimeter or the surroundings, and that the density of the solution is...
Enthalpy of Neutralization Reaction: A 25.0 mL sample of 0.200 M NaOH is mixed with a...
Enthalpy of Neutralization Reaction: A 25.0 mL sample of 0.200 M NaOH is mixed with a 25.0 mL sample of 0.200 M HNO3 in a coffee cup calorimeter. NaOH and HNO3 will undergo Neutralization Reaction according to the following balanced equation: NaOH(aq) + HNO3(aq) --> NaCl (aq) + H2O (l) Both solutions were initially at 35.00°C and Tmax of the resulting solution was recorded as 37.00°C (from the graph). Assume 1) that no heat is lost to the calorimeter or the surroundings, and...
When 27.4 mL of 0.500 M H2SO4 is added to 27.4 mL of 1.00 M KOH...
When 27.4 mL of 0.500 M H2SO4 is added to 27.4 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ΔH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water = 1.00 g/mL; c for water = 4.184 J/g·°C.) kJ/mol H2O
AH and Calorimetry: 8. Suppose 33mL of 1.20M HCl is added to 42mL of a solution...
AH and Calorimetry: 8. Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess sodium 0 hydroxide in a coffee-cup calorimeter. The solution temperature, originally at 20. 0 31.8°C. COMPARE ANSWER WITH PROBLEM #9. 2pts Provide a thermochemical equation, including AH in kJ. (include sign) What is the energy (AH) evolved in kJ per mole of HCI? (include sign) For simplicity, assume the heat capacity and the density of the final solution are those of H2O....
A common laboratory reaction is the neutralization of an acid with a base. When 49.6 mL...
A common laboratory reaction is the neutralization of an acid with a base. When 49.6 mL of 0.500 M HCl at 25.0°C is added to 52.0 mL of 0.500 M NaOH at 25.0°C in a coffee cup calorimeter (with a negligible heat capacity), the temperature of the mixture rises to 28.2°C. What is the heat of reaction per mole of NaCl (in kJ/mol)? Assume the mixture has a specific heat capacity of 4.18 J/(g·K) and that the densities of the...
When 27.0 mL of 0.500 M H2SO4 is added to 27.0 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature...
When 27.0 mL of 0.500 M H2SO4 is added to 27.0 mL of 1.00 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ΔH of this reaction. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water.) (d for water = 1.00 g/mL; c for water = 4.184 J/g·°C.) Answer: ______ kJ/mol H2O
In one of the General Chemistry experiments, you used a coffee-cup calorimeter to measure the heat...
In one of the General Chemistry experiments, you used a coffee-cup calorimeter to measure the heat of neutralization of selected acid-base reactions. The calorimeter consisted of two nested Styrofoam cups with a cardboard lid. A temperature probe was lowered in the solution through a hole in the lid. Is a coffee-cup calorimeter a constant-volume or a constant-pressure device? Is a coffee-cup calorimeter adiabatic? The coffee-cup calorimeter was calibrated by using the neutralization reaction between sodium hydroxide and hydrochloric acid. The...
please help?
AH and Calorimetry: Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess sodium hydroxide in a coffee-cup calorimeter. The solution temperature, originally at 25.0°C, rises to 31.8°C. COMPARE ANSWER WITH PROBLEM #9. 2pts a Provide a thermochemical equation, including AH in kJ. (include sign) b. What is the energy (AH) evolved in kJ per mole of HCI? (include sign) For simplicity, assume the heat capacity and the density of the final solution are...
Vas 25.0°C. rises to AH and Calorimetry: 8. Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess sodium nydroxide in a coffee-cup calorimeter. The solution temperature, originally at 25.0°C, rises to 31.8°C. COMPARE ANSWER WITH PROBLEM #9. 2pts a. Provide a thermochemical equation, including AH in kJ. (include sign) b. What is the energy (AH) evolved in kJ per mole of HCI? include sign) For simplicity, assume the heat capacity and the density of the...
Page 36 When 50.0 mL of 1.00 M HCI(aq) and 50.0 mL of 1.00 M NaOH(aq), both at 22.0 °C, are added to a coffee cup calorimeter, the temperature of the mixture reaches a maximum of 28.9 C. What is the approximate amount of heat produced by this reaction? Specific heat of water is 4.184 J/g C HCl(aq) + NaOH(aq) → Nacl(aq) + H2O() The heat given off by the reaction is equal to that taken in by the solution....
A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HCl in a coffee cup calorimeter. If both solutions were initially at 35.0°C and the temperature of the resulting solution was recorded as 37.0°C, determine the experimental AHxt (in units of kJ/mol NaOH) for the neutralization reaction between aqueous NaOH and HCI. Assume that no heat is lost to the calorimeter or the surroundings, and that the density of the solution is...
AH and Calorimetry: 8. Suppose 33mL of 1.20M HCl is added to 42mL of a solution containing excess sodium 0 hydroxide in a coffee-cup calorimeter. The solution temperature, originally at 20. 0 31.8°C. COMPARE ANSWER WITH PROBLEM #9. 2pts Provide a thermochemical equation, including AH in kJ. (include sign) What is the energy (AH) evolved in kJ per mole of HCI? (include sign) For simplicity, assume the heat capacity and the density of the final solution are those of H2O....
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