(i) Transferring 20.0 $\mathrm{cm^3}$ of the solution: «volumetric/graduated» pipette/pipet ✔

AND

Adding the $\ce{NaOH}$ solution: burette/buret ✔

(ii) table with a row (or column) for each of at least three trials ✔

headings for the initial and final burette readings AND for the titre/volume of $\ce{NaOH}$ added, each with the unit $\mathrm{cm^3}$ ✔

For example:

(iii) «the titre is the difference of two burette readings, so its uncertainty is $2 \times 0.05 = 0.10\ \mathrm{cm^3}$; $\dfrac{0.10}{29.95} \times 100$

(iv) 283.2, 303.2, 333.2, 363.2 ✔

(v) yes AND $K$ decreases as the temperature rises, as expected for an exothermic forward reaction ✔

(i) [1] Both required: a «volumetric/graduated» pipette for the fixed 20.0 cm3 portion, and a burette for the variable NaOH volume; either one alone does not score. (ii) M1: space for at least three trials (a rough titration may be included). M2: separate columns (or rows) for the initial and final burette readings and for the titre, with cm3 units; a single 'volume of NaOH' heading without the two readings does not earn M2. Any orientation and extra headings are acceptable; uncertainties are not required. (iii) [1] for 0.33 % (accept 0.3 %); 0.17 %, from using ± 0.05 cm3 once, does not score. (iv) [1] for all four values: 283.2, 303.2, 333.2, 363.2 (accept 283, 303, 333, 363, or values obtained by adding 273.15). (v) [1] for 'yes' supported by the observation that K falls as T rises, which is what an exothermic forward reaction predicts; 'yes' alone does not score.