NaOH(aq) + HCl(aq) → H2O(l) + NaCl(aq)
A student is trying to determine the heat of reaction for the acid-base neutralization reaction represented above. The student uses 0.50 M NaOH and 0.50 M HCl solutions. Which of the following situations, by itself, would most likely result in the LEAST error in the calculated value of the heat of reaction
i. The thermometer was incorrectly calibrated and read 0.5 Celsius degree too high during the procedure.
ii. The volume of the acid solution added to the calorimeter was actually 1.0 mL less than what was recorded.
iii. The calorimeter was poorly insulated, and some heat escaped to the atmosphere during the procedure.
iv. The actual molarity of the base solution was 0.53 M but was recorded as 0.50 M.
v. The final temperature of the mixture was taken before the contents of the calorimeter had reached thermal equilibrium.

Question

25-02-2022
Chemistry

contestada

NaOH(aq) + HCl(aq) → H2O(l) + NaCl(aq)
A student is trying to determine the heat of reaction for the acid-base neutralization reaction represented above. The student uses 0.50 M NaOH and 0.50 M HCl solutions. Which of the following situations, by itself, would most likely result in the LEAST error in the calculated value of the heat of reaction
i. The thermometer was incorrectly calibrated and read 0.5 Celsius degree too high during the procedure.
ii. The volume of the acid solution added to the calorimeter was actually 1.0 mL less than what was recorded.
iii. The calorimeter was poorly insulated, and some heat escaped to the atmosphere during the procedure.
iv. The actual molarity of the base solution was 0.53 M but was recorded as 0.50 M.
v. The final temperature of the mixture was taken before the contents of the calorimeter had reached thermal equilibrium.

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mickymike92 mickymike92 · Answer 1 · 2022-03-01T13:59:25+01:00

Because the volume error is very small, LEAST error in the calculated value of the heat of reaction will occur if the volume of the acid solution added to the calorimeter was actually 1.0 mL less than what was recorded.

What is a neutralization reaction?

A neutralization reaction is the reaction between an acid and base to produce salt and water only.

Heat is released in a neutralization reaction.

In determining the heat of neutralization, the least possible error will result if the volume of the acid solution added to the calorimeter was actually 1.0 mL less than what was recorded because the volume error is small and will produce the least variation in values.

Learn more about neutralization reaction at: https://brainly.com/question/2632201