) Write the net ionic equation for this neutralization reaction. -) The student designs an experiment to dissolve 1.000 g of MgO(s) in an insulated cup conta 100. g of HCI(aq) with a slight molar excess of the acid. What minimum concentration of I moles per liter is needed for the experiment? Assume the density of the solution is 1.00 g/n E) The student carries out the experiment and measures a temperature rise of 8.27°C. (i) Assuming the specific heat capacity of the solution is 4.00 J/g °C, calculate the amou heat absorbed by the solution from this reaction. (ii) Calculate the experimental enthalpy change for this reaction in J/moln
) Write the net ionic equation for this neutralization reaction. -) The student designs an experiment to dissolve 1.000 g of MgO(s) in an insulated cup conta 100. g of HCI(aq) with a slight molar excess of the acid. What minimum concentration of I moles per liter is needed for the experiment? Assume the density of the solution is 1.00 g/n E) The student carries out the experiment and measures a temperature rise of 8.27°C. (i) Assuming the specific heat capacity of the solution is 4.00 J/g °C, calculate the amou heat absorbed by the solution from this reaction. (ii) Calculate the experimental enthalpy change for this reaction in J/moln
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
![1. A student wishes to measure the enthalpy change of the reaction of magnesium oxide solid (MgO,
M= 40.30 g/mol) with hydrochloric acid (HCI, M= 36.46 g/mol), by the reaction represented in the
equation below.
MgO(s) +2 HCI(aq)→ MgCL(aq) + H0(E)
->
(a) Write the net ionic equation for this neutralization reaction.
(b) The student designs an experiment to dissolve 1.000 g of Mg0(s) in an insulated cup containing
100. g of HCI(aq) with a slight molar excess of the acid. What minimum concentration of HCl in
moles per liter is needed for the experiment? Assume the density of the solution is 1.00 g/mL.
(c) The student carries out the experiment and measures a temperature rise of 8.27°C.
(i) Assuming the specific heat capacity of the solution is 4.00 J/g °C, calculate the amount of
heat absorbed by the solution from this reaction.
(ii) Calculate the experimental enthalpy change for this reaction in J/moln:
(iii) The student checks the literature value for AH°.
value to be -151 kJ/mol. Caleulate the experimental error the student should report and
suggest at least one possible source of this error.
of this reaction and finds the accepted
Ixn
Txn'
(d) The student hypothesizes that using a different strong acid, like perchloric acid (HCIO(aq),
M= 100.46 g/mol), will make a significant difference in the enthalpy of the reaction. Do
you
agree or disagree with this hypothesis? Justify your answer in terms of net ionic equations.
ng or reusing any part of this page is illegal.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5e3eb5b9-70f9-4c46-81e8-c844c47acf22%2F513e6580-cd31-47c5-a1d2-14ff2ae220e2%2Fftqunhi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A student wishes to measure the enthalpy change of the reaction of magnesium oxide solid (MgO,
M= 40.30 g/mol) with hydrochloric acid (HCI, M= 36.46 g/mol), by the reaction represented in the
equation below.
MgO(s) +2 HCI(aq)→ MgCL(aq) + H0(E)
->
(a) Write the net ionic equation for this neutralization reaction.
(b) The student designs an experiment to dissolve 1.000 g of Mg0(s) in an insulated cup containing
100. g of HCI(aq) with a slight molar excess of the acid. What minimum concentration of HCl in
moles per liter is needed for the experiment? Assume the density of the solution is 1.00 g/mL.
(c) The student carries out the experiment and measures a temperature rise of 8.27°C.
(i) Assuming the specific heat capacity of the solution is 4.00 J/g °C, calculate the amount of
heat absorbed by the solution from this reaction.
(ii) Calculate the experimental enthalpy change for this reaction in J/moln:
(iii) The student checks the literature value for AH°.
value to be -151 kJ/mol. Caleulate the experimental error the student should report and
suggest at least one possible source of this error.
of this reaction and finds the accepted
Ixn
Txn'
(d) The student hypothesizes that using a different strong acid, like perchloric acid (HCIO(aq),
M= 100.46 g/mol), will make a significant difference in the enthalpy of the reaction. Do
you
agree or disagree with this hypothesis? Justify your answer in terms of net ionic equations.
ng or reusing any part of this page is illegal.
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