First, subtract your initial from final burette reading to get the titre volume—that answer must be recorded to **two decimal places**, as the mark scheme treats the ±0.05 cm³ uncertainty as your fourth significant figure. I've marked too many papers where students lose the 'recordings' mark by writing 25.0 instead of 25.00 cm³. Honestly, grinding past papers for the tutoring job taught me this strictness—Ema still shakes her head at me muttering "thabak" over spreadsheets of student errors at dawn.
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