A student dissolves 13.0 g of sodium hydroxide (NaOH)in 200. g of water in a well-insulated open cup. She then observes the temperature of the water rise from 23.0 °C to 41.3 °C over the course of 3.9 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaOH(s) Na" (aq) + OH (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to 3 significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. O exothermic O endothermic Is this reaction exothermic, endothermic, or neither? Onoither Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Ac

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.61QE: When 7.11 g NH4NO3 is added to 100 mL water, the temperature of the calorimeter contents decreases...
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exothermic
Is this reaction exothermic, endothermic, or neither?
O endothermic
O neither
If you said the reaction was exothermic or endothermic, calculate the amount of
heat that was released or absorbed by the reaction in this case.
kJ
kJ
Calculate the reaction enthalpy AH
per mole of NaOH.
rxn
mol
Explanation
Check
O 2022 McGraw Hill LLC. All Rights Reserved.
Terms of Use
MAR
20
tv N
Transcribed Image Text:exothermic Is this reaction exothermic, endothermic, or neither? O endothermic O neither If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in this case. kJ kJ Calculate the reaction enthalpy AH per mole of NaOH. rxn mol Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use MAR 20 tv N
A student dissolves 13.0 g of sodium hydroxide (NaOH)in 200. g of water in a well-insulated open cup. She then observes the
temperature of the water rise from 23.0 °C to 41.3 °C over the course of 3.9 minutes.
Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction:
NaOH(s)
Na" (aq) + OH (aq)
You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using
measured data are rounded to 3 significant digits.
Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be
the same as the known and published values for this reaction.
O exothermic
O endothermic
Is this reaction exothermic, endothermic, or neither?
Explanation
Check
O 2022 McGraw Hill LLC. All Rights Reserved.
Terms of Use | Privacy Center
Ac
etv Nili
w
MAR
20
lacBook Air
F7
F8
13
Transcribed Image Text:A student dissolves 13.0 g of sodium hydroxide (NaOH)in 200. g of water in a well-insulated open cup. She then observes the temperature of the water rise from 23.0 °C to 41.3 °C over the course of 3.9 minutes. Use this data, and any information you need from the ALEKS Data resource, to answer the questions below about this reaction: NaOH(s) Na" (aq) + OH (aq) You can make any reasonable assumptions about the physical properties of the solution. Be sure answers you calculate using measured data are rounded to 3 significant digits. Note for advanced students: it's possible the student did not do the experiment carefully, and the values you calculate may not be the same as the known and published values for this reaction. O exothermic O endothermic Is this reaction exothermic, endothermic, or neither? Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Ac etv Nili w MAR 20 lacBook Air F7 F8 13
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