Lab: Enthalpy

Question 1

What were the learning goals of this lab experiment? Check all that apply.

Revolt · Accepted Answer

to use mass and temperature data to do computations involving heat; to compute a reaction’s enthalpy directly using mass measurements and a calorimeter; to compute the enthalpy of a reaction that cannot be measured directly using a simple calorimeter

Question 2

’s law allows you to find the net enthalpy of the magnesium combustion by adding the enthalpies of intermediate reactions.

Revolt · Accepted Answer

Hess

Question 3

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Revolt · Accepted Answer

mass; Selection 1: mass; Selection 2: temperature

Question 4

and the change during the reaction.

Revolt · Accepted Answer

temperature

Question 5

In both Reactions 1 and 2, the temperature change was , meaning that the reactions heat.

Revolt · Accepted Answer

positive; Selection 1: positive; Selection 2: gave off

Question 6

reactions heat.

Revolt · Accepted Answer

gave off

Lab: Enthalpy Answers

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