- X 13 A Lab Data Verify your volume measurement Did you report your data to the correct number of significant figures? 14 Standardized NaOH (M) 0.4194 Initial volume of buret (mL) 0.50 -15 Volume of vinegar (mL) 10.00 Observations turned purple Final volume of buret (mL) Volume of NaOH (mL) Molarity of acetic acid (M) -16 -17 MY NOTES LAB DATA How to calculate vinegar concentration

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