Molar Heat Fusion Experiment

The video tutorial guides students through the process of calculating the molar heat fusion of ice. It begins with setting up the experiment by weighing an empty calorimeter and filling it with warm water. The initial temperature is recorded before adding an ice cube. The ice is allowed to melt, and the final temperature is measured. The video then explains how to calculate the mass of water and ice, as well as the temperature changes. These calculations are used to determine the molar heat fusion of ice.

What is the first step in the experiment for calculating the molar heat fusion of ice?

• Measuring the final temperature

• Adding ice to the calorimeter

• Heating the calorimeter

• Collecting data

What is the mass of the empty calorimeter used in the experiment?

• 8.87 g

• 10.5 g

• 12.3 g

• 15.0 g

How much warm water is initially added to the calorimeter?

• 200 mL

• 50 mL

• 100 mL

• 150 mL

What was the initial temperature of the water before adding the ice cube?

• 30.0 °C

• 45.0 °C

• 40.1 °C

• 35.5 °C

What should you avoid doing to prevent heat loss during the experiment?

• Using a metal lid

• Lifting the lid

• Stirring the water

• Adding more water

What was the final temperature recorded after the ice melted?

• 5.0 °C

• 10.0 °C

• 2.1 °C

• 0.0 °C

How do you calculate the mass of water added to the calorimeter?

• Divide the total mass by the mass of the calorimeter

• Multiply the mass of the calorimeter by two

• Subtract the mass of the calorimeter from the total mass

• Add the mass of the calorimeter to the total mass

What is the mass of the ice added to the calorimeter?

• 42.51 g

• 35.5 g

• 50.0 g

• 30.0 g

How is the change in temperature of the calorimeter calculated?

• Divide final temperature by initial temperature

• Multiply initial temperature by final temperature

• Add initial and final temperatures

• Subtract initial temperature from final temperature

What assumption is made about the initial temperature of the ice cube?

• It is at 15 °C

• It is at 10 °C

• It is at 0 °C

• It is at 5 °C