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Chemistry 5070 · Cambridge (CAIE) O Level

Graphical Analysis

8 past-paper questions on Graphical Analysis · examined 2021–2025.

20252 questions

5070/31 · O/N · Q1(b) [5]Sign up to mark my answer →

Plot a graph of the temperature change (y-axis) against the volume of Y (x-axis) on Fig. 1.1. Draw a line of best fit through the points where the temperature change is increasing. Draw a line of best fit through the points where the temperature change is decreasing. Extend both lines so that they cross.

5070/31 · O/N · Q1(c) [1]Sign up to mark my answer →

Find the point on the graph where the two lines cross. Determine the volume of Y at this point.

20231 question

5070/32 · O/N · Q1(b) [3]Sign up to mark my answer →

Draw a graph of temperature rise against volume of Q on the grid in Fig 1.1. You should: • plot the point (0,0) as there is no temperature rise when no Q is added • plot temperature rise (column G) against volume of Q (column D) from Experiments 1–6 • draw a straight line of best fit for the first four points • draw a straight line of best fit for the last three points • extend the lines so that they intersect.

20215 questions

5070/41 · M/J · Q2(c) [2]Sign up to mark my answer →

Plot the points of temperature change (y-axis) against concentration of HCl (aq) (x-axis) on the grid.

5070/41 · M/J · Q2(d) [2]Sign up to mark my answer →

Draw one straight line of best fit for concentrations up to 0.90 mol / dm3 and a second straight line through the other three points.

5070/41 · M/J · Q2(e) [1]Sign up to mark my answer →

Use the graph to determine the concentration of HCl (aq) which gives a temperature change of 5.4 °C.

5070/41 · M/J · Q2(f) [1]Sign up to mark my answer →

Use the graph to determine the temperature change for 1.40 mol / dm3 HCl (aq).

5070/41 · M/J · Q2(g) [1]Sign up to mark my answer →

Use the graph to determine the minimum concentration of HCl (aq) that neutralises all the NaOH(aq).

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