An acid-base neutralization reaction occurs between 60.0mL of sodium potassium hydroxide, and 60.0mL of nitric acid...

Transcribed Image Text:

An acid-base neutralization reaction occurs between 60.0mL of sodium potassium hydroxide, and 60.0mL of nitric acid solution in a lab calorimeter starting at 20.0°C. The final temperature recorded is 26.57°C. If both solutions have a concentration of 1.00 mol/L answer the following (do not give units in your answer): 1. What is the energy absorbed by the surroundings (in kJ)? 2. What is number of moles of sodium hydroxide (give 3 significant figures)? 3. What is the enthalpy of the reaction in kJ/mol of potassium hydroxide? (Assume that the solution has a heat capacity of 4.18J/g°C, and a density of 1g/mL. KOH has a molar mass of 56.1056 g/mol.) Question 4 (1 point) 7.01 g of fuel was combusted in a bomb calorimeter releasing 32.8 kJ of energy. How much energy was released per gram of fuel? (The heat capacity of the calorimeter is 2.43 kJ/"C.) Your Answer: Answer units An acid-base neutralization reaction occurs between 60.0mL of sodium potassium hydroxide, and 60.0mL of nitric acid solution in a lab calorimeter starting at 20.0°C. The final temperature recorded is 26.57°C. If both solutions have a concentration of 1.00 mol/L answer the following (do not give units in your answer): 1. What is the energy absorbed by the surroundings (in kJ)? 2. What is number of moles of sodium hydroxide (give 3 significant figures)? 3. What is the enthalpy of the reaction in kJ/mol of potassium hydroxide? (Assume that the solution has a heat capacity of 4.18J/g°C, and a density of 1g/mL. KOH has a molar mass of 56.1056 g/mol.) Question 4 (1 point) 7.01 g of fuel was combusted in a bomb calorimeter releasing 32.8 kJ of energy. How much energy was released per gram of fuel? (The heat capacity of the calorimeter is 2.43 kJ/"C.) Your Answer: Answer units