Chemistry Notes Edexcel 6D_2

What is the initial temperature of both solutions in the thermometric titration experiment?

• • A) 18°C

• • B) 20°C

• • C) 22°C

• • D) 25°C

Which apparatus is used to measure the temperature of the solution during the experiment?

• • A) Pipette

• • B) Burette

• • C) Thermometer

• • D) Polystyrene cup

What is the measurement uncertainty for the 50 cm³ burette used in the experiment?

• • A) ±0.01 cm³

• • B) ±0.05 cm³

• • C) ±0.1 cm³

• • D) ±1.0 cm³

The temperature of both solutions before the reaction begins is ________.

The enthalpy change of neutralisation for weak acids is more negative than for strong acids. (true/false)

• false
• true

Some heat energy is transferred to the thermometer and polystyrene cup, causing potential errors in the experiment. (true/false)

• false
• true

Measurement uncertainties in the pipette and burette are sources of error in the experiment. (true/false)

• false
• true

What is the name of the titration technique used in the experiment?

Which apparatus is used to add the acid to the base during the titration?

What is the maximum volume of acid added in the experiment?