Homework Answers
The procedure is the next:
1) Stock solutions of 1 M NaOH and HCl are prepared.
2) 50 mL of each solution is measured and its temperature is measured.
3) The two solutions are mixed within a coffee cup calorimeter and the final temperature obtained is measured.
4) The heat absorbed by the solution is calculated, using the equation:
q = m * cp * ΔT solution
5) The change of enthalpy of the reaction is calculated:
ΔHr = - q / n
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create a procedure to determine the heat neutralization for the reaction between 1 M HCl and 1 M NaOH. create a data...
Data and Results: Part A M (HCI): Volume HCl(aq): Reaction 2: Heat of Neutralization M(NaOH) 50.0...
Data and Results: Part A M (HCI): Volume HCl(aq): Reaction 2: Heat of Neutralization M(NaOH) 50.0 mL (+0.5 mL) Volume NaOH(aq): 20, 9 °C Final Temperature: 6.7 (not from the data above) 1.0 50-0 ML (+0.5 mL) 27.6 °C Initial Temperature: AT (from plot) Mass of Solution: (show all calculations) Moles H*:(show all calculations) Moles OH :(show all calculations) 0.05 moles H 0.05 moles OH AH experimental: (show all calculations) kJ/mol AH (theoretical): (see page 8) (show all calculations) kJ/mol...
Determining the Theoretical Heat of Neutralization Using Hess' Law AH® for HCl(aq), NaOH(aq), H2O(l), and NaCl(aq)...
Determining the Theoretical Heat of Neutralization Using Hess' Law AH® for HCl(aq), NaOH(aq), H2O(l), and NaCl(aq) are -167.16, -470.11, -285.83, and -407.27 kJ/mol, respectively. Use Hess' law to calculate the heat of neutralization in kJ/mol. AHRx = H; (products) - H; (reactants) NaOH(aq) + HCl(aq) → HOH(1) + NaCl(aq) Heat of Formation -470.11 - 167.16 -407.27 kJ/mole Show all your calculations below. Your result will be considered as the "literature" value.
I 1. The Heat of Neutralization of HCl(aq) and NaOH(aq) Mass Heat Capacity Initial Temp Solution...
I 1. The Heat of Neutralization of HCl(aq) and NaOH(aq) Mass Heat Capacity Initial Temp Solution 102g 4.18 J/gºC 20.00 C Final Temp 26.81 3-6 Initial Temp Final Temp nation: sely de 20.00 C 25.21C 2 The Heat of Solution for NaOH) Mass Heat Capacity Solution 2.00g 4.18 J/gºC 3 The Heat of Reaction for HClaq) and NaOH) Solution 2.00g 4.18 J/gºC The Heat of Reaction for HCl(aq) and NaOH) Solution 2.00g 4.18 J/g °C 20.00 31.83 INITIAL TEMP 20.00...
POST LABORATORY QUESTIONS 1. a. For the neutralization reaction that you carried out between HCl(aq) and...
POST LABORATORY QUESTIONS 1. a. For the neutralization reaction that you carried out between HCl(aq) and NaOH (ag). how many moles of NaCl(aq) were produced? b. For the neutralization reaction that you carried out between HCl(aq) and NaOH() how many moles of NaCl(aq) were produced? 2. Calculate AHan for the neutralization of HCl(aq) and NaOH(aq) in kilojoules per mol of NaCl b. Calculate A Hexn for the neutralization of HCl (aq) and NaOH(s) in kilojoules per mol of NaCl 3....
Pre-Lab Questions: 1. Write the balanced molecular equ equation for the neutralization reaction between lar equati...
Pre-Lab Questions: 1. Write the balanced molecular equ equation for the neutralization reaction between lar equation, the total ionic equation and the net lonic on between HCl(aq) and NaOH(aq). a) molecular equation b) total ionic equation c) net ionic equation 2. In this experiment you will use two different concentrations of HCI and NaOH (1,00 M solutions in Part A and 0.500 Min Part B). a) How would you expect the heat of neutralization to differ for the two parts?...
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...
V. Heat of reaction for NaOH (s) + HCI (aq) → Naci (aq) + H20 ()-dH(net) Direct determination Mas...
need help with calculations
V. Heat of reaction for NaOH (s) + HCI (aq) → Naci (aq) + H20 ()-dH(net) Direct determination Mass NaOH Moles NaOH = moles Mass of HCI solution Final temp. of solution Initial temp. of solution AT solution 30 23 C 4 C AH(net)(Direct) per mole NaOH Calculation Indirect determination Heat of dissolution of NaOH (s) [AH(diss)] Mass NaOH Moles NaOH moles Mass of water Final temp. of solution Initial temp. of solution AT solution AH(diss)-...
need help with these questions please ISE 4: Neutralization You will need: 1 m/HCI 1 mil...
need help with these questions please
ISE 4: Neutralization You will need: 1 m/HCI 1 mil NaOH pH paper small graduated cylinder 50 ml beaker Write an equation for the dissociation of HCl in water. HCI - Na lootcrloo How many equivalents of Hare produced?_10 Write an equation for the dissociation of NaOH in water. How many equivalents of OH are produced? Co Will 5 mLs of 1.0 mM HCL neutralize 5 mLs of 1.0 mm NaOH? O Measure 5...
The reaction between NaOH(s) and HCl(aq) is exothermic. Will the amount of heat released be different...
The reaction between NaOH(s) and HCl(aq) is exothermic. Will the amount of heat released be different or the same for the different assigned combination of amounts of NaOH and HCI? Before starting your heat investigations, record your hypothesis below. Then proceed to assemble your calorimeter and make heat measurements. Create a table to compile the data collected from your group work. Write your hypothesis here: OS
calcylate the enthalpy of the neutralization for this reaction using the data provided find the following:...
calcylate the enthalpy of the neutralization for this reaction using the data provided find the following: find the mole of H^+ moles of OH^- limiting reagent heat transfer solution enthalpy of neutralization per mole limiting reagent Lab Notebook Determination of Enthalpy of Neutralization (Ccal: 17.55 J/°C) Volume of HCI 100 mL Initial temperature of HCI 23 °C Volume of NaOH Initial temperature of NaOH 23 °C Final solution temperature 37 °C Moles of H Moles of OH Limiting reagent Select...
Data and Results: Part A M (HCI): Volume HCl(aq): Reaction 2: Heat of Neutralization M(NaOH) 50.0 mL (+0.5 mL) Volume NaOH(aq): 20, 9 °C Final Temperature: 6.7 (not from the data above) 1.0 50-0 ML (+0.5 mL) 27.6 °C Initial Temperature: AT (from plot) Mass of Solution: (show all calculations) Moles H*:(show all calculations) Moles OH :(show all calculations) 0.05 moles H 0.05 moles OH AH experimental: (show all calculations) kJ/mol AH (theoretical): (see page 8) (show all calculations) kJ/mol...
Determining the Theoretical Heat of Neutralization Using Hess' Law AH® for HCl(aq), NaOH(aq), H2O(l), and NaCl(aq) are -167.16, -470.11, -285.83, and -407.27 kJ/mol, respectively. Use Hess' law to calculate the heat of neutralization in kJ/mol. AHRx = H; (products) - H; (reactants) NaOH(aq) + HCl(aq) → HOH(1) + NaCl(aq) Heat of Formation -470.11 - 167.16 -407.27 kJ/mole Show all your calculations below. Your result will be considered as the "literature" value.
I 1. The Heat of Neutralization of HCl(aq) and NaOH(aq) Mass Heat Capacity Initial Temp Solution 102g 4.18 J/gºC 20.00 C Final Temp 26.81 3-6 Initial Temp Final Temp nation: sely de 20.00 C 25.21C 2 The Heat of Solution for NaOH) Mass Heat Capacity Solution 2.00g 4.18 J/gºC 3 The Heat of Reaction for HClaq) and NaOH) Solution 2.00g 4.18 J/gºC The Heat of Reaction for HCl(aq) and NaOH) Solution 2.00g 4.18 J/g °C 20.00 31.83 INITIAL TEMP 20.00...
POST LABORATORY QUESTIONS 1. a. For the neutralization reaction that you carried out between HCl(aq) and NaOH (ag). how many moles of NaCl(aq) were produced? b. For the neutralization reaction that you carried out between HCl(aq) and NaOH() how many moles of NaCl(aq) were produced? 2. Calculate AHan for the neutralization of HCl(aq) and NaOH(aq) in kilojoules per mol of NaCl b. Calculate A Hexn for the neutralization of HCl (aq) and NaOH(s) in kilojoules per mol of NaCl 3....
Pre-Lab Questions: 1. Write the balanced molecular equ equation for the neutralization reaction between lar equation, the total ionic equation and the net lonic on between HCl(aq) and NaOH(aq). a) molecular equation b) total ionic equation c) net ionic equation 2. In this experiment you will use two different concentrations of HCI and NaOH (1,00 M solutions in Part A and 0.500 Min Part B). a) How would you expect the heat of neutralization to differ for the two parts?...
need help with calculations
V. Heat of reaction for NaOH (s) + HCI (aq) → Naci (aq) + H20 ()-dH(net) Direct determination Mass NaOH Moles NaOH = moles Mass of HCI solution Final temp. of solution Initial temp. of solution AT solution 30 23 C 4 C AH(net)(Direct) per mole NaOH Calculation Indirect determination Heat of dissolution of NaOH (s) [AH(diss)] Mass NaOH Moles NaOH moles Mass of water Final temp. of solution Initial temp. of solution AT solution AH(diss)-...
need help with these questions please
ISE 4: Neutralization You will need: 1 m/HCI 1 mil NaOH pH paper small graduated cylinder 50 ml beaker Write an equation for the dissociation of HCl in water. HCI - Na lootcrloo How many equivalents of Hare produced?_10 Write an equation for the dissociation of NaOH in water. How many equivalents of OH are produced? Co Will 5 mLs of 1.0 mM HCL neutralize 5 mLs of 1.0 mm NaOH? O Measure 5...
The reaction between NaOH(s) and HCl(aq) is exothermic. Will the amount of heat released be different or the same for the different assigned combination of amounts of NaOH and HCI? Before starting your heat investigations, record your hypothesis below. Then proceed to assemble your calorimeter and make heat measurements. Create a table to compile the data collected from your group work. Write your hypothesis here: OS
calcylate the enthalpy of the neutralization for this reaction using the data provided find the following: find the mole of H^+ moles of OH^- limiting reagent heat transfer solution enthalpy of neutralization per mole limiting reagent Lab Notebook Determination of Enthalpy of Neutralization (Ccal: 17.55 J/°C) Volume of HCI 100 mL Initial temperature of HCI 23 °C Volume of NaOH Initial temperature of NaOH 23 °C Final solution temperature 37 °C Moles of H Moles of OH Limiting reagent Select...
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