CHM2045L student Gabrielle has experimentally determined the molar heat of disso

Question

CHM2045L student Gabrielle has experimentally determined the molar heat of dissolution for KNO3 in water to be 30.08 kJ/mol. If the accepted literature value is 34.89 kj/mol, what is her percent error? Express your answer to one digit after the decimal.

re-lab quiz arted: Feb 22 at 12:07am uiz Instructions Ensure you are using either Firefox or Chrome as your browser for this and all quizzes in Canvas. Read carefully each question and select the corresponding answer from the given possibilities or write the corr answer (depending of the case. You will have 2 attempts. Question 1 0.5 pts CHM2045L student Gabrielle has experimentally determined the molar heat of dissolution for KNO3 in water to be 30.08 kJ/mol. If the accepted literature value is 34.89 /mol, what is her percent error? Express your answer to one digit after the decimal, and remember. Do not use signs (ie. or units (ie in your answer. Next

Explanation / Answer

% error = {[absolute value of (experimental value - accepted value)] / accepted value ]} x 100

Given experimental value = 30.08 kJ/mol.

accepted literature value = 34.89 kj/mol

% error = absolute value of    ([30.08 kJ/mol.- 34.89 kj/mol] / 34.89 kj/mol ) x 100

            = 4.81 /34.89 x 100

            = 13.78 %

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