3. Answer the following questions regarding the neutralization of HCl using NaOH: a. If the volume...
3. Answer the following questions regarding the neutralization of HCl using NaOH:
a. If the volume of both HCl and NaOH were doubled, how would this change the value of qrxn? Explain.
b. If the volume of both HCl and NaOH were doubled, how would this change the value of ∆Hrxn? Explain.
c. If only the volume of NaOH was doubled, how would this change the value of qrxn? Explain.
d. If only the volume of NaOH was doubled, how would this change the value of ∆T? Explain.
Homework Answers
Solution:
A) Heat of neutralizayltion reaction (Qrxn) depends upon the number of reacting H+ and OH- ions.On doubling the volume of both HCl and NaOH, doubles the number of H+ and OH- ions, hence, Qrxn will be doubled.
B) Enthalpy change (ΔH) of neutralization reaction does not depends upon the volume, it depends upon the concentration, hence it is unchanged on doubling the volume of HCl and NaOH.
C) Qrxn is same because number of H+ ion is same, hence on doubling the volume only increases OH- ions. Therefore, number of reacting ions ( H+ and OH-) will be same.
D) ΔT will decreases.
Because number of reacting ions (H+ and OH-) are same, hence they produces constant heat but on douling the volume causes increase in the total volume. Hence, temperature of solution will be lower.
Add Answer to:
3. Answer the following questions regarding the neutralization
of HCl using NaOH:
a. If the volume...
3. Answer the following questions regarding the neutralization of HCl using NaOH: a. If the volume o...
3. Answer the following questions regarding the neutralization of HCl using NaOH: a. If the volume of both HCI and NaOH were doubled, how would this change the value of qmm? Explain. b. If the volume of both HCI and NaOH were doubled, how would this change the value of ΔHm? Explain. c. If only the volume of NaOH was doubled, how would this change the value of qrn? Explain. d. If only the volume of NaOH was doubled, how would this change the...
Questions 15 mne neutralization reaction between HCl and NaOH and between HNO, and NaOH exothermic or endothermic?...
Questions 15 mne neutralization reaction between HCl and NaOH and between HNO, and NaOH exothermic or endothermic? How is this reflected by the sign of AHeutralization? 2. Hydrochloric and nitric acids are strong acids. Write a balanced equation (including states of matter) to show the ionization of: HCl in aqueous solution. HNO, in aqueous solution. 3. Sodium hydroxide is a strong base. Write a balanced equation (including states of matter) to show the dissociation of solid NaOH in aqueous solution....
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?...
Show how to solve: The determination of the heat of neutralization for HCl was determined, using...
Show how to solve: The determination of the heat of neutralization for HCl was determined, using a calorimeter having a calorimeter constant of 85.0 J/°C. To this calorimeter, 50.0 mL of 2.100 M HCl were added to 50.0 mL of 2.210 M NaOH. The temperature rose from 25.0 °C to 35.0 °C. The specific heat of the mixture is 5.02 J/g°C. The density of the mixture is 1.02 g.cm-3. What is the heat of neutralization for HCl in kJ/mol? (Answer...
Please help with 1, 3, and 4 :) A. ΔHsolution of NaOH(s) Phase Change: Mass of...
Please help with 1, 3, and 4 :)
A. ΔHsolution of NaOH(s) Phase
Change:
Mass of NaOH: 1.81 g
ΔT for reaction A : 6 °C
B. ΔHsolution for neutralization of
HCl(aq) and NaOH(aq):
Volume of HCl: .05 L
Volume of NaOH: .05 L
Volume total: .10 L
Molarity of HCl: 2.08 M
Molarity of NaOH: 2.08 M
ΔT for reaction B: 12°C
C. ΔH for Reaction of HCl(aq) and
NaOH(s):
Volume of HCl: .055 L
Volume of water: .045...
Table 4.2: Enthalpy of Neutralization for an Acid-Base Reaction Trial 1 Concentration of NaOH 1. i...
Table 4.2: Enthalpy of Neutralization for an Acid-Base Reaction Trial 1 Concentration of NaOH 1. i mol/L Initial temperature of NaOH 22.1°C Volume of NaOH Concentration of HCI 45, I mL 1.2 mol/L 22.3°C Initial temperature of HCI Trial 2 lol mol/L 21.9°C 63 mL 45. Iml 1,2 mol/L 22.5°C 45.2 mL 27.5° 22.2°C 5.3°C 90.3 mL 4.18 Jg! °C! Volume of HCI 45.3 ml Final temperature of mixture Average initial temperature (HCl and NaOH) Ti Temperature change, (47) 28.6°C...
THe enthalpy of neutralization of HCN (aq) with NaOH (aq) is -12.0 kJ/mol. Using your value...
THe enthalpy of neutralization of HCN (aq) with NaOH (aq) is -12.0 kJ/mol. Using your value for the enthalpy of neutralization of H+(aq) with OH-(aq) and the technique used in question 2, determine the enthalpy of ionization of HCN. Compare the relative amounts of ionization of HCL and HC2H3O2. Which is the stronger acid? Question 2. The neutralization of HC2H3O2 (aq) by NaOH(aq) (part C) can be considered to be the sum of the neutralization of H+(aq) by OH-(aq) (part...
2. A 49.21 mL volume of 1.00 M HCl was mixed with 48.05 mL of 2.00...
2. A 49.21 mL volume of 1.00 M HCl was mixed with 48.05 mL of 2.00 M NaOH in a coffee cup calorimeter (with calorimeter constant = 25.6 J/°C) at 20.32 °C. The final temperature of the aqueous solution after the reaction was 29.83 °C. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The total mass of aqueous solution inside the calorimeter (dsoln = 1.00 g/mL) g correct 1/1 b. The change in...
A 48.53 mL volume of 1.00 M HCl was mixed with 47.70 mL of 2.00 M...
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Questions 15 mne neutralization reaction between HCl and NaOH and between HNO, and NaOH exothermic or endothermic? How is this reflected by the sign of AHeutralization? 2. Hydrochloric and nitric acids are strong acids. Write a balanced equation (including states of matter) to show the ionization of: HCl in aqueous solution. HNO, in aqueous solution. 3. Sodium hydroxide is a strong base. Write a balanced equation (including states of matter) to show the dissociation of solid NaOH in aqueous solution....
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?...
Please help with 1, 3, and 4 :)
A. ΔHsolution of NaOH(s) Phase
Change:
Mass of NaOH: 1.81 g
ΔT for reaction A : 6 °C
B. ΔHsolution for neutralization of
HCl(aq) and NaOH(aq):
Volume of HCl: .05 L
Volume of NaOH: .05 L
Volume total: .10 L
Molarity of HCl: 2.08 M
Molarity of NaOH: 2.08 M
ΔT for reaction B: 12°C
C. ΔH for Reaction of HCl(aq) and
NaOH(s):
Volume of HCl: .055 L
Volume of water: .045...
Table 4.2: Enthalpy of Neutralization for an Acid-Base Reaction Trial 1 Concentration of NaOH 1. i mol/L Initial temperature of NaOH 22.1°C Volume of NaOH Concentration of HCI 45, I mL 1.2 mol/L 22.3°C Initial temperature of HCI Trial 2 lol mol/L 21.9°C 63 mL 45. Iml 1,2 mol/L 22.5°C 45.2 mL 27.5° 22.2°C 5.3°C 90.3 mL 4.18 Jg! °C! Volume of HCI 45.3 ml Final temperature of mixture Average initial temperature (HCl and NaOH) Ti Temperature change, (47) 28.6°C...
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