Neutralisation
11 past-paper questions on Neutralisation · examined 2021–2023.
20238 questions
The point where the two lines intersect indicates the volume of Q that exactly neutralises 25.0 cm3 of P. Determine the volume of Q where the two lines on the graph intersect.
Complete Table 2.1 by filling in the three missing values.
Parts of the thermometer used in Experiment 3 are shown in Fig. 2.1. The liquid levels inside the thermometer are missing. Complete Fig. 2.1 by drawing in the liquid level to show: • the initial temperature in Experiment 3 • the highest temperature reached in Experiment 3.
Draw a graph of temperature rise against volume of Q on the grid in Fig. 2.2.
The point where the two lines intersect indicates the volume of Q that exactly neutralises 25.0 cm3 of P. Determine the volume of Q where the two lines on the graph intersect.
P is 1.25 mol / dm3 aqueous sodium hydroxide. Use your answer to (d) to calculate the concentration of sulfuric acid in Q.
Describe and explain what happens to the gradient of the straight line for the first four points on the graph if a metal cup is used instead of a plastic cup.
A burette may be used instead of a measuring cylinder to measure the volume of water in these experiments. Suggest how this improves the experiments.
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